Social Behavior: Any behavior caused by or affecting another individual, usually of the same species.Hierarchy, Social: Social rank-order established by certain behavioral patterns.Social Support: Support systems that provide assistance and encouragement to individuals with physical or emotional disabilities in order that they may better cope. Informal social support is usually provided by friends, relatives, or peers, while formal assistance is provided by churches, groups, etc.Social Dominance: Social structure of a group as it relates to the relative social rank of dominance status of its members. (APA, Thesaurus of Psychological Index Terms, 8th ed.)Social Environment: The aggregate of social and cultural institutions, forms, patterns, and processes that influence the life of an individual or community.Social Isolation: The separation of individuals or groups resulting in the lack of or minimizing of social contact and/or communication. This separation may be accomplished by physical separation, by social barriers and by psychological mechanisms. In the latter, there may be interaction but no real communication.Social Perception: The perceiving of attributes, characteristics, and behaviors of one's associates or social groups.Social Class: A stratum of people with similar position and prestige; includes social stratification. Social class is measured by criteria such as education, occupation, and income.Social Adjustment: Adaptation of the person to the social environment. Adjustment may take place by adapting the self to the environment or by changing the environment. (From Campbell, Psychiatric Dictionary, 1996)Social Media: Platforms that provide the ability and tools to create and publish information accessed via the INTERNET. Generally these platforms have three characteristics with content user generated, high degree of interaction between creator and viewer, and easily integrated with other sites.Social Work: The use of community resources, individual case work, or group work to promote the adaptive capacities of individuals in relation to their social and economic environments. It includes social service agencies.Social Sciences: Disciplines concerned with the interrelationships of individuals in a social environment including social organizations and institutions. Includes Sociology and Anthropology.Social Distance: The degree of closeness or acceptance an individual or group feels toward another individual or group.Social Change: Social process whereby the values, attitudes, or institutions of society, such as education, family, religion, and industry become modified. It includes both the natural process and action programs initiated by members of the community.Social Conditions: The state of society as it exists or in flux. While it usually refers to society as a whole in a specified geographical or political region, it is applicable also to restricted strata of a society.Social Values: Abstract standards or empirical variables in social life which are believed to be important and/or desirable.Social Problems: Situations affecting a significant number of people, that are believed to be sources of difficulty or threaten the stability of the community, and that require programs of amelioration.Social Behavior Disorders: Behaviors which are at variance with the expected social norm and which affect other individuals.Social Security: Government sponsored social insurance programs.Agonistic Behavior: Any behavior associated with conflict between two individuals.Psychology, Social: The branch of psychology concerned with the effects of group membership upon the behavior, attitudes, and beliefs of an individual.Social Desirability: A personality trait rendering the individual acceptable in social or interpersonal relations. It is related to social acceptance, social approval, popularity, social status, leadership qualities, or any quality making him a socially desirable companion.Social Identification: The process by which an aspect of self image is developed based on in-group preference or ethnocentrism and a perception of belonging to a social or cultural group. (From APA, Thesaurus of Psychological Index Terms, 8th ed.)Social Participation: Involvement in community activities or programs.Social Welfare: Organized institutions which provide services to ameliorate conditions of need or social pathology in the community.Social Conformity: Behavioral or attitudinal compliance with recognized social patterns or standards.Social Justice: An interactive process whereby members of a community are concerned for the equality and rights of all.Social Facilitation: Any enhancement of a motivated behavior in which individuals do the same thing with some degree of mutual stimulation and consequent coordination.Social Alienation: The state of estrangement individuals feel in cultural settings that they view as foreign, unpredictable, or unacceptable.Phobic Disorders: Anxiety disorders in which the essential feature is persistent and irrational fear of a specific object, activity, or situation that the individual feels compelled to avoid. The individual recognizes the fear as excessive or unreasonable.Behavior, Animal: The observable response an animal makes to any situation.Social Medicine: A branch of medicine concerned with the role of socio-environmental factors in the occurrence, prevention and treatment of disease.Social Marketing: Use of marketing principles also used to sell products to consumers to promote ideas, attitudes and behaviors. Design and use of programs seeking to increase the acceptance of a social idea or practice by target groups, not for the benefit of the marketer, but to benefit the target audience and the general society.Socioeconomic Factors: Social and economic factors that characterize the individual or group within the social structure.Stress, Psychological: Stress wherein emotional factors predominate.Questionnaires: Predetermined sets of questions used to collect data - clinical data, social status, occupational group, etc. The term is often applied to a self-completed survey instrument.Dominance-Subordination: Relationship between individuals when one individual threatens or becomes aggressive and the other individual remains passive or attempts to escape.Systematized Nomenclature of Medicine: Controlled vocabulary of clinical terms produced by the International Health Terminology Standards Development Organisation (IHTSDO).Sexual Behavior, Animal: Sexual activities of animals.Social Responsibility: The obligations and accountability assumed in carrying out actions or ideas on behalf of others.Social Determinants of Health: The circumstances in which people are born, grow up, live, work, and age, as well as the systems put in place to deal with illness. These circumstances are in turn shaped by a wider set of forces: economics, social policies, and politics ( An animal's cleaning and caring for the body surface. This includes preening, the cleaning and oiling of feathers with the bill or of hair with the tongue.Animal Communication: Communication between animals involving the giving off by one individual of some chemical or physical signal, that, on being received by another, influences its behavior.Social Stigma: A perceived attribute that is deeply discrediting and is considered to be a violation of social norms.Models, Psychological: Theoretical representations that simulate psychological processes and/or social processes. These include the use of mathematical equations, computers, and other electronic equipment.Peer Group: Group composed of associates of same species, approximately the same age, and usually of similar rank or social status.Adaptation, Psychological: A state of harmony between internal needs and external demands and the processes used in achieving this condition. (From APA Thesaurus of Psychological Index Terms, 8th ed)Models, Theoretical: Theoretical representations that simulate the behavior or activity of systems, processes, or phenomena. They include the use of mathematical equations, computers, and other electronic equipment.Friends: Persons whom one knows, likes, and trusts.Social Work, Psychiatric: Use of all social work processes in the treatment of patients in a psychiatric or mental health setting.Sociology: A social science dealing with group relationships, patterns of collective behavior, and social organization.Immunodominant Epitopes: Subunits of the antigenic determinant that are most easily recognized by the immune system and thus most influence the specificity of the induced antibody.Health Status: The level of health of the individual, group, or population as subjectively assessed by the individual or by more objective measures.Time Factors: Elements of limited time intervals, contributing to particular results or situations.Emotions: Those affective states which can be experienced and have arousing and motivational properties.Reinforcement, Social: The strengthening of a response with a social reward such as a nod of approval, a parent's love or attention.Models, Biological: Theoretical representations that simulate the behavior or activity of biological processes or diseases. For disease models in living animals, DISEASE MODELS, ANIMAL is available. Biological models include the use of mathematical equations, computers, and other electronic equipment.Cross-Sectional Studies: Studies in which the presence or absence of disease or other health-related variables are determined in each member of the study population or in a representative sample at one particular time. This contrasts with LONGITUDINAL STUDIES which are followed over a period of time.Social Planning: Interactional process combining investigation, discussion, and agreement by a number of people in the preparation and carrying out of a program to ameliorate conditions of need or social pathology in the community. It usually involves the action of a formal political, legal, or recognized voluntary body.Competitive Behavior: The direct struggle between individuals for environmental necessities or for a common goal.Sex Factors: Maleness or femaleness as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or effect of a circumstance. It is used with human or animal concepts but should be differentiated from SEX CHARACTERISTICS, anatomical or physiological manifestations of sex, and from SEX DISTRIBUTION, the number of males and females in given circumstances.United StatesBiological Evolution: The process of cumulative change over successive generations through which organisms acquire their distinguishing morphological and physiological characteristics.Self Concept: A person's view of himself.Analysis of Variance: A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable.Residence Characteristics: Elements of residence that characterize a population. They are applicable in determining need for and utilization of health services.Cognition: Intellectual or mental process whereby an organism obtains knowledge.Cooperative Behavior: The interaction of two or more persons or organizations directed toward a common goal which is mutually beneficial. An act or instance of working or acting together for a common purpose or benefit, i.e., joint action. (From Random House Dictionary Unabridged, 2d ed)Anxiety: Feeling or emotion of dread, apprehension, and impending disaster but not disabling as with ANXIETY DISORDERS.Loneliness: The state of feeling sad or dejected as a result of lack of companionship or being separated from others.Rejection (Psychology): Non-acceptance, negative attitudes, hostility or excessive criticism of the individual which may precipitate feelings of rejection.Prejudice: A preconceived judgment made without factual basis.Algorithms: A procedure consisting of a sequence of algebraic formulas and/or logical steps to calculate or determine a given task.Risk Factors: An aspect of personal behavior or lifestyle, environmental exposure, or inborn or inherited characteristic, which, on the basis of epidemiologic evidence, is known to be associated with a health-related condition considered important to prevent.Quality of Life: A generic concept reflecting concern with the modification and enhancement of life attributes, e.g., physical, political, moral and social environment; the overall condition of a human life.Autistic Disorder: A disorder beginning in childhood. It is marked by the presence of markedly abnormal or impaired development in social interaction and communication and a markedly restricted repertoire of activity and interest. Manifestations of the disorder vary greatly depending on the developmental level and chronological age of the individual. (DSM-V)Molecular Sequence Data: Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.Culture: A collective expression for all behavior patterns acquired and socially transmitted through symbols. Culture includes customs, traditions, and language.Aggression: Behavior which may be manifested by destructive and attacking action which is verbal or physical, by covert attitudes of hostility or by obstructionism.Mescaline: Hallucinogenic alkaloid isolated from the flowering heads (peyote) of Lophophora (formerly Anhalonium) williamsii, a Mexican cactus used in Indian religious rites and as an experimental psychotomimetic. Among its cellular effects are agonist actions at some types of serotonin receptors. It has no accepted therapeutic uses although it is legal for religious use by members of the Native American Church.Internet: A loose confederation of computer communication networks around the world. The networks that make up the Internet are connected through several backbone networks. The Internet grew out of the US Government ARPAnet project and was designed to facilitate information exchange.Interviews as Topic: Conversations with an individual or individuals held in order to obtain information about their background and other personal biographical data, their attitudes and opinions, etc. It includes school admission or job interviews.Vocalization, Animal: Sounds used in animal communication.Economics, Behavioral: The combined discipline of psychology and economics that investigates what happens in markets in which some of the agents display human limitations and complications.Age Factors: Age as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or the effect of a circumstance. It is used with human or animal concepts but should be differentiated from AGING, a physiological process, and TIME FACTORS which refers only to the passage of time.Longitudinal Studies: Studies in which variables relating to an individual or group of individuals are assessed over a period of time.Blogging: Using an INTERNET based personal journal which may consist of reflections, comments, and often hyperlinks.Terminology as Topic: The terms, expressions, designations, or symbols used in a particular science, discipline, or specialized subject area.Social Control, Formal: Control which is exerted by the more stable organizations of society, such as established institutions and the law. They are ordinarily embodied in definite codes, usually written.Brain Mapping: Imaging techniques used to colocalize sites of brain functions or physiological activity with brain structures.Psychometrics: Assessment of psychological variables by the application of mathematical procedures.Depression: Depressive states usually of moderate intensity in contrast with major depression present in neurotic and psychotic disorders.Social Discrimination: Group behavior toward others by virtue of their group membership.Vocabulary, Controlled: A specified list of terms with a fixed and unalterable meaning, and from which a selection is made when CATALOGING; ABSTRACTING AND INDEXING; or searching BOOKS; JOURNALS AS TOPIC; and other documents. The control is intended to avoid the scattering of related subjects under different headings (SUBJECT HEADINGS). The list may be altered or extended only by the publisher or issuing agency. (From Harrod's Librarians' Glossary, 7th ed, p163)Gene Expression Regulation, Developmental: Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control of gene action during the developmental stages of an organism.Learning: Relatively permanent change in behavior that is the result of past experience or practice. The concept includes the acquisition of knowledge.Educational Status: Educational attainment or level of education of individuals.Sociology, Medical: The study of the social determinants and social effects of health and disease, and of the social structure of medical institutions or professions.Poverty: A situation in which the level of living of an individual, family, or group is below the standard of the community. It is often related to a specific income level.Brain: The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM.Health Status Disparities: Variation in rates of disease occurrence and disabilities between population groups defined by socioeconomic characteristics such as age, ethnicity, economic resources, or gender and populations identified geographically or similar measures.Facial Expression: Observable changes of expression in the face in response to emotional stimuli.Play and Playthings: Spontaneous or voluntary recreational activities pursued for enjoyment and accessories or equipment used in the activities; includes games, toys, etc.Family: A social group consisting of parents or parent substitutes and children.Pair Bond: In animals, the social relationship established between a male and female for reproduction. It may include raising of young.Recognition (Psychology): The knowledge or perception that someone or something present has been previously encountered.Employment: The state of being engaged in an activity or service for wages or salary.Phenotype: The outward appearance of the individual. It is the product of interactions between genes, and between the GENOTYPE and the environment.Decision Making: The process of making a selective intellectual judgment when presented with several complex alternatives consisting of several variables, and usually defining a course of action or an idea.Higher Nervous Activity: A term used in Eastern European research literature on brain and behavior physiology for cortical functions. It refers to the highest level of integrative function of the brain, centered in the CEREBRAL CORTEX, regulating language, thought, and behavior via sensory, motor, and cognitive processes.Computer Simulation: Computer-based representation of physical systems and phenomena such as chemical processes.Mental Health: The state wherein the person is well adjusted.Socialization: The training or molding of an individual through various relationships, educational agencies, and social controls, which enables him to become a member of a particular society.Behavior: The observable response of a man or animal to a situation.Photic Stimulation: Investigative technique commonly used during ELECTROENCEPHALOGRAPHY in which a series of bright light flashes or visual patterns are used to elicit brain activity.Reproduction: The total process by which organisms produce offspring. (Stedman, 25th ed)Magnetic Resonance Imaging: Non-invasive method of demonstrating internal anatomy based on the principle that atomic nuclei in a strong magnetic field absorb pulses of radiofrequency energy and emit them as radiowaves which can be reconstructed into computerized images. The concept includes proton spin tomographic techniques.Sociobiology: The comparative study of social organization in animals including humans, especially with regard to its genetic basis and evolutionary history. (Merriam-Webster's Collegiate Dictionary, 10th ed)Games, Experimental: Games designed to provide information on hypotheses, policies, procedures, or strategies.Psychiatric Status Rating Scales: Standardized procedures utilizing rating scales or interview schedules carried out by health personnel for evaluating the degree of mental illness.Choice Behavior: The act of making a selection among two or more alternatives, usually after a period of deliberation.Caulobacter: A genus of gram-negative, aerobic, rod- or vibroid-shaped or fusiform bacteria that commonly produce a stalk. They are found in fresh water and soil and divide by binary transverse fission.Ants: Insects of the family Formicidae, very common and widespread, probably the most successful of all the insect groups. All ants are social insects, and most colonies contain three castes, queens, males, and workers. Their habits are often very elaborate and a great many studies have been made of ant behavior. Ants produce a number of secretions that function in offense, defense, and communication. (From Borror, et al., An Introduction to the Study of Insects, 4th ed, p676)Sex Characteristics: Those characteristics that distinguish one SEX from the other. The primary sex characteristics are the OVARIES and TESTES and their related hormones. Secondary sex characteristics are those which are masculine or feminine but not directly related to reproduction.Emotional Intelligence: The ability to understand and manage emotions and to use emotional knowledge to enhance thought and deal effectively with tasks. Components of emotional intelligence include empathy, self-motivation, self-awareness, self-regulation, and social skill. Emotional intelligence is a measurement of one's ability to socialize or relate to others.Environment: The external elements and conditions which surround, influence, and affect the life and development of an organism or population.Regression Analysis: Procedures for finding the mathematical function which best describes the relationship between a dependent variable and one or more independent variables. In linear regression (see LINEAR MODELS) the relationship is constrained to be a straight line and LEAST-SQUARES ANALYSIS is used to determine the best fit. In logistic regression (see LOGISTIC MODELS) the dependent variable is qualitative rather than continuously variable and LIKELIHOOD FUNCTIONS are used to find the best relationship. In multiple regression, the dependent variable is considered to depend on more than a single independent variable.Transcription Factors: Endogenous substances, usually proteins, which are effective in the initiation, stimulation, or termination of the genetic transcription process.Schizophrenic Psychology: Study of mental processes and behavior of schizophrenics.Health Promotion: Encouraging consumer behaviors most likely to optimize health potentials (physical and psychosocial) through health information, preventive programs, and access to medical care.Activities of Daily Living: The performance of the basic activities of self care, such as dressing, ambulation, or eating.Personal Construct Theory: A psychological theory based on dimensions or categories used by a given person in describing or explaining the personality and behavior of others or of himself. The basic idea is that different people will use consistently different categories. The theory was formulated in the fifties by George Kelly. Two tests devised by him are the role construct repertory test and the repertory grid test. (From Stuart Sutherland, The International Dictionary of Psychology, 1989)Sex Differentiation: The process in developing sex- or gender-specific tissue, organ, or function after SEX DETERMINATION PROCESSES have set the sex of the GONADS. Major areas of sex differentiation occur in the reproductive tract (GENITALIA) and the brain.Communication: The exchange or transmission of ideas, attitudes, or beliefs between individuals or groups.Ethology: The discipline pertaining to the study of animal behavior.Housing, AnimalPsychosocial Deprivation: The absence of appropriate stimuli in the physical or social environment which are necessary for the emotional, social, and intellectual development of the individual.Politics: Activities concerned with governmental policies, functions, etc.Health Surveys: A systematic collection of factual data pertaining to health and disease in a human population within a given geographic area.Health Behavior: Behaviors expressed by individuals to protect, maintain or promote their health status. For example, proper diet, and appropriate exercise are activities perceived to influence health status. Life style is closely associated with health behavior and factors influencing life style are socioeconomic, educational, and cultural.Imitative Behavior: The mimicking of the behavior of one individual by another.Attention: Focusing on certain aspects of current experience to the exclusion of others. It is the act of heeding or taking notice or concentrating.Epitopes, T-Lymphocyte: Antigenic determinants recognized and bound by the T-cell receptor. Epitopes recognized by the T-cell receptor are often located in the inner, unexposed side of the antigen, and become accessible to the T-cell receptors after proteolytic processing of the antigen.Sociometric Techniques: Methods for quantitatively assessing and measuring interpersonal and group relationships.Base Sequence: The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence.Attitude to Health: Public attitudes toward health, disease, and the medical care system.Qualitative Research: Any type of research that employs nonnumeric information to explore individual or group characteristics, producing findings not arrived at by statistical procedures or other quantitative means. (Qualitative Inquiry: A Dictionary of Terms Thousand Oaks, CA: Sage Publications, 1997)Cell Lineage: The developmental history of specific differentiated cell types as traced back to the original STEM CELLS in the embryo.Trust: Confidence in or reliance on a person or thing.Mental Disorders: Psychiatric illness or diseases manifested by breakdowns in the adaptational process expressed primarily as abnormalities of thought, feeling, and behavior producing either distress or impairment of function.Marriage: The social institution involving legal and/or religious sanction whereby individuals are joined together.Pattern Recognition, Visual: Mental process to visually perceive a critical number of facts (the pattern), such as characters, shapes, displays, or designs.Game Theory: Theoretical construct used in applied mathematics to analyze certain situations in which there is an interplay between parties that may have similar, opposed, or mixed interests. In a typical game, decision-making "players," who each have their own goals, try to gain advantage over the other parties by anticipating each other's decisions; the game is finally resolved as a consequence of the players' decisions.Anthropology, Cultural: It is the study of social phenomena which characterize the learned, shared, and transmitted social activities of particular ethnic groups with focus on the causes, consequences, and complexities of human social and cultural variability.Visual Perception: The selecting and organizing of visual stimuli based on the individual's past experience.Concept Formation: A cognitive process involving the formation of ideas generalized from the knowledge of qualities, aspects, and relations of objects.Face: The anterior portion of the head that includes the skin, muscles, and structures of the forehead, eyes, nose, mouth, cheeks, and jaw.Family Relations: Behavioral, psychological, and social relations among various members of the nuclear family and the extended family.Flagella: A whiplike motility appendage present on the surface cells. Prokaryote flagella are composed of a protein called FLAGELLIN. Bacteria can have a single flagellum, a tuft at one pole, or multiple flagella covering the entire surface. In eukaryotes, flagella are threadlike protoplasmic extensions used to propel flagellates and sperm. Flagella have the same basic structure as CILIA but are longer in proportion to the cell bearing them and present in much smaller numbers. (From King & Stansfield, A Dictionary of Genetics, 4th ed)Motivation: Those factors which cause an organism to behave or act in either a goal-seeking or satisfying manner. They may be influenced by physiological drives or by external stimuli.Urban Population: The inhabitants of a city or town, including metropolitan areas and suburban areas.Child Development Disorders, Pervasive: Severe distortions in the development of many basic psychological functions that are not normal for any stage in development. These distortions are manifested in sustained social impairment, speech abnormalities, and peculiar motor movements.Public Policy: A course or method of action selected, usually by a government, from among alternatives to guide and determine present and future decisions.Reproducibility of Results: The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results.Neoplastic Stem Cells: Highly proliferative, self-renewing, and colony-forming stem cells which give rise to NEOPLASMS.Shyness: Discomfort and partial inhibition of the usual forms of behavior when in the presence of others.Stereotyping: An oversimplified perception or conception especially of persons, social groups, etc.Perception: The process by which the nature and meaning of sensory stimuli are recognized and interpreted.Altruism: Consideration and concern for others, as opposed to self-love or egoism, which can be a motivating influence.Cluster Analysis: A set of statistical methods used to group variables or observations into strongly inter-related subgroups. In epidemiology, it may be used to analyze a closely grouped series of events or cases of disease or other health-related phenomenon with well-defined distribution patterns in relation to time or place or both.Vulnerable Populations: Groups of persons whose range of options is severely limited, who are frequently subjected to COERCION in their DECISION MAKING, or who may be compromised in their ability to give INFORMED CONSENT.Knowledge: The body of truths or facts accumulated in the course of time, the cumulated sum of information, its volume and nature, in any civilization, period, or country.Mice, Inbred C57BLAmygdala: Almond-shaped group of basal nuclei anterior to the INFERIOR HORN OF THE LATERAL VENTRICLE of the TEMPORAL LOBE. The amygdala is part of the limbic system.Income: Revenues or receipts accruing from business enterprise, labor, or invested capital.Cues: Signals for an action; that specific portion of a perceptual field or pattern of stimuli to which a subject has learned to respond.Great BritainPower (Psychology): The exertion of a strong influence or control over others in a variety of settings--administrative, social, academic, etc.Logistic Models: Statistical models which describe the relationship between a qualitative dependent variable (that is, one which can take only certain discrete values, such as the presence or absence of a disease) and an independent variable. A common application is in epidemiology for estimating an individual's risk (probability of a disease) as a function of a given risk factor.Exploratory Behavior: The tendency to explore or investigate a novel environment. It is considered a motivation not clearly distinguishable from curiosity.Cultural Evolution: The continuous developmental process of a culture from simple to complex forms and from homogeneous to heterogeneous qualities.Students: Individuals enrolled in a school or formal educational program.Cichlids: Common name for perch-like fish of the family Cichlidae, belonging to the suborder Labroidei, order PERCIFORMES.Psychology: The science dealing with the study of mental processes and behavior in man and animals.Individuality: Those psychological characteristics which differentiate individuals from one another.Adolescent Behavior: Any observable response or action of an adolescent.Attitude: An enduring, learned predisposition to behave in a consistent way toward a given class of objects, or a persistent mental and/or neural state of readiness to react to a certain class of objects, not as they are but as they are conceived to be.Anomie: A state of social disorganization and demoralization in society which is largely the result of disharmony between cultural goals and the means for attaining them. This may be reflected in the behavior of the individual in many ways - non-conformity, social withdrawal, deviant behavior, etc.Territoriality: Behavior in defense of an area against another individual or individuals primarily of the same species.Feeding Behavior: Behavioral responses or sequences associated with eating including modes of feeding, rhythmic patterns of eating, and time intervals.Health Knowledge, Attitudes, Practice: Knowledge, attitudes, and associated behaviors which pertain to health-related topics such as PATHOLOGIC PROCESSES or diseases, their prevention, and treatment. This term refers to non-health workers and health workers (HEALTH PERSONNEL).Alcohol Drinking: Behaviors associated with the ingesting of alcoholic beverages, including social drinking.Schizophrenia: A severe emotional disorder of psychotic depth characteristically marked by a retreat from reality with delusion formation, HALLUCINATIONS, emotional disharmony, and regressive behavior.Signal Transduction: The intracellular transfer of information (biological activation/inhibition) through a signal pathway. In each signal transduction system, an activation/inhibition signal from a biologically active molecule (hormone, neurotransmitter) is mediated via the coupling of a receptor/enzyme to a second messenger system or to an ion channel. Signal transduction plays an important role in activating cellular functions, cell differentiation, and cell proliferation. Examples of signal transduction systems are the GAMMA-AMINOBUTYRIC ACID-postsynaptic receptor-calcium ion channel system, the receptor-mediated T-cell activation pathway, and the receptor-mediated activation of phospholipases. Those coupled to membrane depolarization or intracellular release of calcium include the receptor-mediated activation of cytotoxic functions in granulocytes and the synaptic potentiation of protein kinase activation. Some signal transduction pathways may be part of larger signal transduction pathways; for example, protein kinase activation is part of the platelet activation signal pathway.Anxiety Disorders: Persistent and disabling ANXIETY.Abies: A plant genus in the family PINACEAE, order Pinales, class Pinopsida, division Coniferophyta. Balm of Gilead is a common name more often referring to POPULUS and sometimes to COMMIPHORA.Amino Acid Sequence: The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION.Mutation: Any detectable and heritable change in the genetic material that causes a change in the GENOTYPE and which is transmitted to daughter cells and to succeeding generations.Motor Activity: The physical activity of a human or an animal as a behavioral phenomenon.Species Specificity: The restriction of a characteristic behavior, anatomical structure or physical system, such as immune response; metabolic response, or gene or gene variant to the members of one species. It refers to that property which differentiates one species from another but it is also used for phylogenetic levels higher or lower than the species.Life Change Events: Those occurrences, including social, psychological, and environmental, which require an adjustment or effect a change in an individual's pattern of living.