Pleasure: Sensation of enjoyment or gratification.Pleasure-Pain Principle: The psychoanalytic concept that man instinctively seeks to avoid pain and discomfort and strives for gratification and pleasure.Anhedonia: Inability to experience pleasure due to impairment or dysfunction of normal psychological and neurobiological mechanisms. It is a symptom of many PSYCHOTIC DISORDERS (e.g., DEPRESSIVE DISORDER, MAJOR; and SCHIZOPHRENIA).Orgasm: The climax of sexual excitement in either humans or animals.HumanitiesHappiness: Highly pleasant emotion characterized by outward manifestations of gratification; joy.Philosophy: A love or pursuit of wisdom. A search for the underlying causes and principles of reality. (Webster, 3d ed)Reward: An object or a situation that can serve to reinforce a response, to satisfy a motive, or to afford pleasure.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.Lubricants: Compounds that provide LUBRICATION between surfaces in order to reduce FRICTION.Coitus: The sexual union of a male and a female, a term used for human only.Apathy: Lack of emotion or emotional expression; a disorder of motivation that persists over time.Ethics: The philosophy or code pertaining to what is ideal in human character and conduct. Also, the field of study dealing with the principles of morality.Emotions: Those affective states which can be experienced and have arousing and motivational properties.Masturbation: Sexual stimulation or gratification of the self.Affective Symptoms: Mood or emotional responses dissonant with or inappropriate to the behavior and/or stimulus.Men: Human males as cultural, psychological, sociological, political, and economic entities.Affect: The feeling-tone accompaniment of an idea or mental representation. It is the most direct psychic derivative of instinct and the psychic representative of the various bodily changes by means of which instincts manifest themselves.Sexual Behavior: Sexual activities of humans.Set (Psychology): Readiness to think or respond in a predetermined way when confronted with a problem or stimulus situation.Individuality: Those psychological characteristics which differentiate individuals from one another.Contraception Behavior: Behavior patterns of those practicing CONTRACEPTION.Libido: The psychic drive or energy associated with sexual instinct in the broad sense (pleasure and love-object seeking). It may also connote the psychic energy associated with instincts in general that motivate behavior.Condoms: A sheath that is worn over the penis during sexual behavior in order to prevent pregnancy or spread of sexually transmitted disease.Sexual Dysfunction, Physiological: Physiological disturbances in normal sexual performance in either the male or the female.Sexual Dysfunctions, Psychological: Disturbances in sexual desire and the psychophysiologic changes that characterize the sexual response cycle and cause marked distress and interpersonal difficulty. (APA, DSM-IV, 1994)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.Taste: The ability to detect chemicals through gustatory receptors in the mouth, including those on the TONGUE; the PALATE; the PHARYNX; and the EPIGLOTTIS.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.Arousal: Cortical vigilance or readiness of tone, presumed to be in response to sensory stimulation via the reticular activating system.Schizotypal Personality Disorder: A personality disorder in which there are oddities of thought (magical thinking, paranoid ideation, suspiciousness), perception (illusions, depersonalization), speech (digressive, vague, overelaborate), and behavior (inappropriate affect in social interactions, frequently social isolation) that are not severe enough to characterize schizophrenia.