Choice Behavior: The act of making a selection among two or more alternatives, usually after a period of deliberation.Reward: An object or a situation that can serve to reinforce a response, to satisfy a motive, or to afford pleasure.Behavior, Animal: The observable response an animal makes to any situation.Probability Learning: Usually refers to the use of mathematical models in the prediction of learning to perform tasks based on the theory of probability applied to responses; it may also refer to the frequency of occurrence of the responses observed in the particular study.Gambling: An activity distinguished primarily by an element of risk in trying to obtain a desired goal, e.g., playing a game of chance for money.Reinforcement Schedule: A schedule prescribing when the subject is to be reinforced or rewarded in terms of temporal interval in psychological experiments. The schedule may be continuous or intermittent.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.Reinforcement (Psychology): The strengthening of a conditioned response.Conditioning, Operant: Learning situations in which the sequence responses of the subject are instrumental in producing reinforcement. When the correct response occurs, which involves the selection from among a repertoire of responses, the subject is immediately reinforced.Feeding Behavior: Behavioral responses or sequences associated with eating including modes of feeding, rhythmic patterns of eating, and time intervals.Impulsive Behavior: An act performed without delay, reflection, voluntary direction or obvious control in response to a stimulus.Games, Experimental: Games designed to provide information on hypotheses, policies, procedures, or strategies.Columbidae: Family in the order COLUMBIFORMES, comprised of pigeons or doves. They are BIRDS with short legs, stout bodies, small heads, and slender bills. Some sources call the smaller species doves and the larger pigeons, but the names are interchangeable.Discrimination Learning: Learning that is manifested in the ability to respond differentially to various stimuli.Individuality: Those psychological characteristics which differentiate individuals from one another.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.Mating Preference, Animal: The selection or choice of sexual partner in animals. Often this reproductive preference is based on traits in the potential mate, such as coloration, size, or behavioral boldness. If the chosen ones are genetically different from the rejected ones, then NATURAL SELECTION is occurring.Risk-Taking: Undertaking a task involving a challenge for achievement or a desirable goal in which there is a lack of certainty or a fear of failure. It may also include the exhibiting of certain behaviors whose outcomes may present a risk to the individual or to those associated with him or her.Models, Psychological: Theoretical representations that simulate psychological processes and/or social processes. These include the use of mathematical equations, computers, and other electronic equipment.Food Preferences: The selection of one food over another.Macaca mulatta: A species of the genus MACACA inhabiting India, China, and other parts of Asia. The species is used extensively in biomedical research and adapts very well to living with humans.Prefrontal Cortex: The rostral part of the frontal lobe, bounded by the inferior precentral fissure in humans, which receives projection fibers from the MEDIODORSAL NUCLEUS OF THE THALAMUS. The prefrontal cortex receives afferent fibers from numerous structures of the DIENCEPHALON; MESENCEPHALON; and LIMBIC SYSTEM as well as cortical afferents of visual, auditory, and somatic origin.Reaction Time: The time from the onset of a stimulus until a response is observed.Learning: Relatively permanent change in behavior that is the result of past experience or practice. The concept includes the acquisition of knowledge.Psychomotor Performance: The coordination of a sensory or ideational (cognitive) process and a motor activity.Social Behavior: Any behavior caused by or affecting another individual, usually of the same species.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.Cues: Signals for an action; that specific portion of a perceptual field or pattern of stimuli to which a subject has learned to respond.Rats, Long-Evans: An outbred strain of rats developed in 1915 by crossing several Wistar Institute white females with a wild gray male. Inbred strains have been derived from this original outbred strain, including Long-Evans cinnamon rats (RATS, INBRED LEC) and Otsuka-Long-Evans-Tokushima Fatty rats (RATS, INBRED OLETF), which are models for Wilson's disease and non-insulin dependent diabetes mellitus, respectively.Color Perception: Mental processing of chromatic signals (COLOR VISION) from the eye by the VISUAL CORTEX where they are converted into symbolic representations. Color perception involves numerous neurons, and is influenced not only by the distribution of wavelengths from the viewed object, but also by its background color and brightness contrast at its boundary.Behavior: The observable response of a man or animal to a situation.Sexual Behavior, Animal: Sexual activities of animals.Sexual Behavior: Sexual activities of humans.Models, Neurological: Theoretical representations that simulate the behavior or activity of the neurological system, processes or phenomena; includes the use of mathematical equations, computers, and other electronic equipment.Nerve Net: A meshlike structure composed of interconnecting nerve cells that are separated at the synaptic junction or joined to one another by cytoplasmic processes. In invertebrates, for example, the nerve net allows nerve impulses to spread over a wide area of the net because synapses can pass information in any direction.Brain Mapping: Imaging techniques used to colocalize sites of brain functions or physiological activity with brain structures.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.Dopamine: One of the catecholamine NEUROTRANSMITTERS in the brain. It is derived from TYROSINE and is the precursor to NOREPINEPHRINE and EPINEPHRINE. Dopamine is a major transmitter in the extrapyramidal system of the brain, and important in regulating movement. A family of receptors (RECEPTORS, DOPAMINE) mediate its action.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.Time Factors: Elements of limited time intervals, contributing to particular results or situations.Child Behavior: Any observable response or action of a child from 24 months through 12 years of age. For neonates or children younger than 24 months, INFANT BEHAVIOR is available.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.Exploratory Behavior: The tendency to explore or investigate a novel environment. It is considered a motivation not clearly distinguishable from curiosity.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.Adolescent Behavior: Any observable response or action of an adolescent.Child Behavior Disorders: Disturbances considered to be pathological based on age and stage appropriateness, e.g., conduct disturbances and anaclitic depression. This concept does not include psychoneuroses, psychoses, or personality disorders with fixed patterns.Maternal Behavior: The behavior patterns associated with or characteristic of a mother.Behavior Therapy: The application of modern theories of learning and conditioning in the treatment of behavior disorders.Stereotyped Behavior: Relatively invariant mode of behavior elicited or determined by a particular situation; may be verbal, postural, or expressive.Aggression: Behavior which may be manifested by destructive and attacking action which is verbal or physical, by covert attitudes of hostility or by obstructionism.Nesting Behavior: Animal behavior associated with the nest; includes construction, effects of size and material; behavior of the adult during the nesting period and the effect of the nest on the behavior of the young.Agonistic Behavior: Any behavior associated with conflict between two individuals.Appetitive Behavior: Animal searching behavior. The variable introductory phase of an instinctive behavior pattern or sequence, e.g., looking for food, or sequential courtship patterns prior to mating.Motor Activity: The physical activity of a human or an animal as a behavioral phenomenon.Self-Injurious Behavior: Behavior in which persons hurt or harm themselves without the motive of suicide or of sexual deviation.Predatory Behavior: Instinctual behavior pattern in which food is obtained by killing and consuming other species.Career Choice: Selection of a type of occupation or profession.Social Behavior Disorders: Behaviors which are at variance with the expected social norm and which affect other individuals.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.Behavior, Addictive: The observable, measurable, and often pathological activity of an organism that portrays its inability to overcome a habit resulting in an insatiable craving for a substance or for performing certain acts. The addictive behavior includes the emotional and physical overdependence on the object of habit in increasing amount or frequency.Drinking Behavior: Behaviors associated with the ingesting of water and other liquids; includes rhythmic patterns of drinking (time intervals - onset and duration), frequency and satiety.Illness Behavior: Coordinate set of non-specific behavioral responses to non-psychiatric illness. These may include loss of APPETITE or LIBIDO; disinterest in ACTIVITIES OF DAILY LIVING; or withdrawal from social interaction.Compulsive Behavior: The behavior of performing an act persistently and repetitively without it leading to reward or pleasure. The act is usually a small, circumscribed behavior, almost ritualistic, yet not pathologically disturbing. Examples of compulsive behavior include twirling of hair, checking something constantly, not wanting pennies in change, straightening tilted pictures, etc.Risk Reduction Behavior: Reduction of high-risk choices and adoption of low-risk quantity and frequency alternatives.Consummatory Behavior: An act which constitutes the termination of a given instinctive behavior pattern or sequence.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).
Reward system: The reward system is a group of neural structures that are critically involved in mediating the effects of reinforcement. A reward is an appetitive stimulus given to a human or some other animal to alter its behavior.Gambler's conceit: Gambler’s conceit is the fallacy described by behavioral economist David J. Ewing, where a gambler believes they will be able to stop a risky behavior while still engaging in it.The Final Decision: The Final Decision is an episode from season 1 of the animated TV series X-Men Animated Series.Information hypothesis of conditioned reinforcementBarratt WaughSenorita Stakes: The Senorita Stakes is an American flat Thoroughbred horse race for three-year-old fillies once held annually at Hollywood Park Racetrack in Inglewood, California.Carneau: The Carneau is a breed of pigeon developed over many years of selective breeding primarily as a utility breed. Carneau, along with other varieties of domesticated pigeons, are all descendants from the rock pigeon (Columba livia).Biological ornament: A biological ornament is a secondary sexual characteristic of an animal that appears to serve a decorative function rather than an ostensible, utilitarian function. Ornaments are used in displays to attract mates in a process known as sexual selection.Disinhibition: In psychology, disinhibition is a lack of restraint manifested in disregard for social conventions, impulsivity, and poor risk assessment. Disinhibition affects motor, instinctual, emotional, cognitive, and perceptual aspects with signs and symptoms similar to the diagnostic criteria for mania.Genetics of social behavior: The genetics of social behavior is an area of research that attempts to address the question of the role that genes play in modulating the neural circuits in the brain which influence social behavior. Model genetic species, such as D.Behavior: Behavior or behaviour (see spelling differences) is the range of actions and [made by individuals, organism]s, [[systems, or artificial entities in conjunction with themselves or their environment, which includes the other systems or organisms around as well as the (inanimate) physical environment. It is the response of the system or organism to various stimuli or inputs, whether [or external], [[conscious or subconscious, overt or covert, and voluntary or involuntary.Cue stick: A cue stick (or simply cue, more specifically pool cue, snooker cue, or billiards cue), is an item of sporting equipment essential to the games of pool, snooker and carom billiards. It is used to strike a ball, usually the .Sexual motivation and hormones: Sexual motivation is influenced by hormones such as testosterone, estrogen, progesterone, oxytocin, and vasopressin. In most mammalian species, sex hormones control the ability to engage in sexual behaviours.Dopamine receptorTemporal analysis of products: Temporal Analysis of Products (TAP), (TAP-2), (TAP-3) is an experimental technique for studyingCuriosity: Curiosity (from Latin curiosus "careful, diligent, curious," akin to cura "care") is a quality related to inquisitive thinking such as exploration, investigation, and learning, evident by observation in human and animal species. Curiosity is heavily associated with all aspects of human development, in which derives the process of learning and desire to acquire knowledge and skill.HyperintensityDog aggression: Dog aggression is a term used by dog owners and breeders to describe canine-to-canine antipathy. Aggression itself is usually defined by canine behaviorists as "the intent to do harm".Nest (protein structural motif): The Nest is a type of protein structural motif. Peptide nests are small anion-binding molecular features of proteins and peptides.Dutch profanity: Dutch profanity can be divided into several categories. Often, the words used in profanity by speakers of Dutch are based around various names for diseases.Intraguild predation: Intraguild predation, or IGP, is the killing and eating of potential competitors. This interaction represents a combination of predation and competition, because both species rely on the same prey resources and also benefit from preying upon one another.Becky JamesClosed-ended question: A closed-ended question is a question format that limits respondents with a list of answer choices from which they must choose to answer the question.Dillman D.Exercise addiction: An exercise addiction can have harmful consequences although it is not listed as a disorder in the latest revision of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV). This type of addiction can be classified under a behavioral addiction in which a person’s behavior becomes obsessive, compulsive, and/or causes dysfunction in a person's life.Sickness behavior: [Ancher 001.jpg|thumb|350px|right|Ancher, Michael], "The Sick Girl", 1882, [[Statens Museum for Kunst.Tales from the Dark Side Greatest Hits and Choice Collectables 1974–1997: Tales from the Dark Side Greatest Hits and Classic Collectables 1974-1997 is a compilation album by rock music group, Dragon, released in 1998. Disc one has the same track listing as Snake Eyes on the Paradise Greatest Hits 1976–1989, which was issued in the same year.Behavior change (public health): Behavior change is a central objective in public health interventions,WHO 2002: World Health Report 2002 - Reducing Risks, Promoting Healthy Life Accessed Feb 2015 http://www.who.
(1/4015) Relationships between various attitudes towards self-determination in health care with special reference to an advance directive.
OBJECTIVES: The subject of patient self-determination in health care has gained broad interest because of the increasing number of incompetent patients. In an attempt to solve the problems related to doctors' decision making in such circumstances, advance directives have been developed. The purpose of this study was to examine relationships between public attitudes towards patient autonomy and advance directives. SUBJECTS AND MAIN OUTCOME MEASURES: A stratified random sample of 600 adults in northern Sweden was surveyed by a questionnaire with a response rate of 78.2%. The subjects were asked about their wish for control of their health care, their concerns about health care, their treatment preferences in a life-threatening situation (both reversible and irreversible), and their attitudes towards the application of advance directives. RESULTS: Numerous relationships between various aspects of self-determination in health care (desire for control, fears of over-treatment, and choice of treatment level) in general and advance directives, in particular, were found. Those who wanted to have a say in their health care (about 94%) also mainly supported the use of an advance directive. CONCLUSIONS: The fact that almost 30% of the respondents were undecided concerning their personal use of advance directives points to a lack of knowledge and to the necessity of education of the public on these issues. (+info)
(2/4015) Women patients' preferences for female or male GPs.
OBJECTIVE: We aimed to investigate general preferences to see a male or female GP either some or all of the time, and specific preferences to see a female primary health care (PHC) worker for individual health issues; to compare these preferences with reported consultation behaviour; and to explore women's evaluations of the quality of PHC services in relation to their preferences and consultation behaviour. METHOD: Results are reported on 881 women aged 16-65 years who had consulted their GP in the previous 6 months. Logistical regression analysis was undertaken to evaluate whether a general preference to see another woman is more important than specific women's health issues in determining why some women regularly choose to consult a female GP. RESULTS: General preference was 2.6 times more important than specific health issues in predicting choice of a female GP in a mixed-sex practice. Nearly a half (49.1 %) of women attending male-only practices stated that they wanted to see a female GP in at least some circumstances, compared with 63.8% of women in mixed-sex practices. In total, 65.5% of the sample stated that there was at least one specific health issue for which they would only want to be seen by a woman PHC worker. The most positive evaluations of the quality of GP services were made by women normally seeing a male GP in mixed-sex practices and the least positive evaluations were given by women in male-only GP practices CONCLUSIONS: In order to meet women's expressed preferences, every GP practice should have at least one female GP available at least some of the time and every GP practice should employ a female PHC worker. (+info)
(3/4015) Why are workers uninsured? Employer-sponsored health insurance in 1997.
This study examines the number of workers in firms offering employee health plans, the number of workers eligible for such plans, and participation in employer-sponsored insurance. Data from the February 1997 Contingent Worker Supplement to the Current Population Survey indicate that 10.1 million workers are employed by firms offering insurance but are not eligible. Not all of these workers are eligible for coverage, most often because of hours of work. Our results indicate that 11.4 million workers rejected coverage when it was offered. Of those, 2.5 million workers were uninsured. Workers cited high cost of insurance most often as the primary factor for refusing coverage. (+info)
(4/4015) Selection for oesophagectomy and postoperative outcome in a defined population.
OBJECTIVE: To measure the extent of use of, and perioperative mortality from, oesophagectomy for carcinoma of the oesophagus, and to examine the association between oesophagectomy and long term survival. DESIGN: Retrospective cohort study of cases of oesophageal carcinoma notified to the Thames Cancer Registry. SETTING: South East Thames and South West Thames health regions. PATIENTS: 3273 patients first registered with carcinoma of the oesophagus during 1985-9, 789 of whom were excluded because of incomplete data, leaving 2484 (75.9%) for further analysis. MAIN MEASURES: Treatment of oesophagectomy, mortality within 30 days of oesophagectomy, and duration of survival from date of diagnosis to death, according to patient and tumour characteristics. RESULTS: Oesophagectomy was performed in 571(23.0%) patients. Its use decreased with increasing age (odds ratio (95% confidence interval) 0.935(0.925 to 0.944) per year) and was less common for tumours of the middle or upper third of the oesophagus than the lower third (0.56(0.42 to 0.75)). The proportion of patients undergoing oesophagectomy varied threefold among the 28 districts of residence. The perioperative mortality rate was 15.1(86/571) (12% to 18%); it increased with age (odds ratio 1.05(1.02 to 1.08) per year) and for tumours of the middle or upper third of the oesophagus compared with the lower third (2.52(1.31 to 4.84)). Long term survival was slightly higher for patients undergoing oesophagectomy (0.5% v 0.2%). CONCLUSIONS: Despite a high perioperative mortality rate patients selected for oesophagectomy showed better long term survival than those who were not, suggesting that clinical judgements used in selection were independent markers of a better prognosis. The nature of this selection needs to be more completely characterised to permit a valid evaluation of outcome of oesophagectomy. (+info)
(5/4015) Choice and accountability in health promotion: the role of health economics.
Choices need to be made between competing uses of health care resources. There is debate about how these choices should be made, who should make them and the criteria upon which they should be made. Evaluation of health care is an important part of this debate. It has been suggested that the contribution of health economics to the evaluation of health promotion is limited, both because the methods and principles underlying economic evaluation are unsuited to health promotion, and because the political and cultural processes governing the health care system are more appropriate mechanisms for allocating health care resources than systematic economic analysis of the costs and benefits of different health care choices. This view misrepresents and misunderstands the contribution of health economics to the evaluation of health promotion. It overstates the undoubted methodological difficulties of evaluating health promotion. It also argues, mistakenly, that economists see economic evaluation as a substitute for the political and cultural processes governing health care, rather than an input to them. This paper argues for an economics input on grounds of efficiency, accountability and ethics, and challenges the critics of the economic approach to judge alternative mechanisms for allocating resources by the same criteria. (+info)
(6/4015) Medicare HMOs: who joins and who leaves?
Medicare risk health maintenance organizations (HMOs) are an increasingly common alternative to fee-for-service Medicare. To date, there has been no examination of whether the HMO program is preferentially used by blacks or by persons living in lower-income areas or whether race and income are associated with reversing Medicare HMO selection. This question is important because evidence suggests that these beneficiaries receive poorer care under the fee-for-service-system than do whites and persons from wealthier areas. Medicare enrollment data from South Florida were examined for 1990 to 1993. Four overlapping groups of enrollees were examined: all age-eligible (age 65 and over) beneficiaries in 1990; all age-eligible beneficiaries in 1993; all age-eligible beneficiaries residing in South Florida during the period 1990 to 1993; and all beneficiaries who became age-eligible for Medicare benefits between 1990 and 1993. The associations between race or income and choice of Medicare option were examined by logistic regression. The association between the demographic characteristics and time staying with a particular option was examined with Kaplan-Meier methods and Cox Proportional Hazards modeling. Enrollment in Medicare risk HMOs steadily increased over the 4-year study period. In the overall Medicare population, the following statistically significant patterns of enrollment in Medicare HMOs were seen: enrollment of blacks was two times higher than that of non-blacks; enrollment decreased with age; and enrollment decreased as income level increased. For the newly eligible population, initial selection of Medicare option was strongly linked to income; race effects were weak but statistically significant. The data for disenrollment from an HMO revealed a similar demographic pattern. At 6 months, higher percentages of blacks, older beneficiaries (older than 85), and individuals from the lowest income area (less than $15,000 per year) had disenrolled. A small percentage of beneficiaries moved between HMOs and FFS plans multiple times. These data on Medicare HMO populations in South Florida, an area with a high concentration of elderly individuals and with one of the highest HMO enrollment rates in the country, indicate that enrollment into and disenrollment from Medicare risk HMOs are associated with certain demographic characteristics, specifically, black race or residence in a low-income area. (+info)
(7/4015) Determinants of patient choice of medical provider: a case study in rural China.
This study examines the factors that influence patient choice of medical provider in the three-tier health care system in rural China: village health posts, township health centres, and county (and higher level) hospitals. The model is estimated using a multinomial logit approach applied to a sample of 1877 cases of outpatient treatment from a household survey in Shunyi county of Beijing in 1993. This represents the first effort to identify and quantify the impact of individual factors on patient choice of provider in China. The results show that relative to self-pay patients, Government and Labour Health Insurance beneficiaries are more likely to use county hospitals, while patients covered by the rural Cooperative Medical System (CMS) are more likely to use village-level facilities. In addition, high-income patients are more likely to visit county hospitals than low-income patients. The results also reveal that disease patterns have a significant impact on patient choice of provider, implying that the ongoing process of health transition will lead people to use the higher quality services offered at the county hospitals. We discuss the implications of the results for organizing health care finance and delivery in rural China to achieve efficiency and equity. (+info)
(8/4015) Contraceptive needs of women attending a genitourinary medicine clinic for the first time.
OBJECTIVE: To assess the need for, and potential uptake of, a contraceptive service within a genitourinary medicine (GUM) clinic. METHODS: 544 women, median age 17 years (range 13-54) including 142 teenagers, attending the Fife GUM clinics serving a semirural population of 350,000 for the first time in the 12 month period from 1 September 1995 to 31 August 1996 were interviewed. RESULTS: Contraception was required by 353, of whom only 5% (29) were at risk of unplanned pregnancy, although half (15) of these were teenagers. 23 of 29 (79%) stated that they would access contraception at a GUM clinic if it were available. Of women using contraception, 67% (217/324) were taking the oral contraceptive pill (OCP), of whom 177 obtained supplies from their general practitioners and were happy with this. However, 92/177 (52%) stated that they would access the OCP at GUM clinics if it were available. Overall, of the 243 women who stated that they would access contraception at the GUM clinic, 23 of whom were currently at risk of an unplanned pregnancy, the demand was principally for condoms and the OCP. CONCLUSION: The majority of women attending GUM clinics for the first time are using contraception, or have deliberately chosen not to do so. Only 5% were at risk of unplanned pregnancy. In general, the women using contraception were happy with their current source of contraception, but about two thirds would use a contraceptive service at GUM clinics if it were available at the time they were attending the clinic. It was found that teenagers accounted for half of those women at risk of unwanted pregnancy. However, the majority of teenagers requiring contraception would consider obtaining it from GUM clinics. (+info)