Motivation
a need or desire that energizes and directs behavior
Instinct
a complex behavior that is rigidly patterned throughout a species and is unlearned
Drive-reduction theory
the idea that a physiological need creates an aroused tension state (a drive) that motivates an organism to satisfy the need
Homeostasis
A tendency to maintain a balanced or constant internal state; the regulation of any aspect of body chemistry, such as blood glucose, around a particular level
Incentive
a positive or negative environmental stimulus that motivates behavior
Yerkes-Dodson law
the principle that performance increases with arousal only up to a point, beyond which performance decreases
Hierarchy of needs
Maslow's pyramid of human needs, beginning at the base with physiological needs that must first be satisfied before higher-level safety needs and then psychological needs become active
Glucose
the form of sugar that circulates in the blood and provides the major source of energy for body tissues. When its level is low, we feel hunger.
Set point
the point at which an individual's "weight thermostat" is supposedly set. When the body falls below this weight, an increase in hunger and a lowered metabolic rate may act to restore the lost weight.
Basal metabolic rate
the body's resting rate of energy expenditure
Sexual response cycle
the four stages of sexual responding described by Masters and Johnson - excitement, plateau, orgasm, and resolution
Refractory period
in human sexuality, a resting period that occurs after orgasm, during which a person cannot achieve another orgasm
Sexual dysfunction
a problem that consistently impairs sexual arousal or functioning
Estrogens
sex hormones, such as estradiol, secreted in greater amounts by females than by males and contributing to female sex characteristics. In nonhuman female mammals, estrogen levels peak during ovulation, promoting sexual receptivity
Testosterone
the most important of the male sex hormones. Both males and females have it, but the additional testosterone in males stimulates the growth of the male sex organs in the fetus and the development of the male sex characteristics during puberty
Optimal arousal theory
A theory of motivation stating that people are motivated to behave in ways that maintain what is, for them, an optimal level of arousal
Ghrelin
A hunger-arousing hormone secreted by an empty stomach
Insulin
A protein hormone synthesized in the pancreas that regulates blood sugar levels by facilitating the uptake of glucose into tissues
Orexin
hunger-triggering hormone secreted by hypothalamus
Leptin
A hormone produced by adipose (fat) cells that acts as a satiety factor in regulating appetite.
PYY
digestive tract hormone; sends "I'm not hungry" signals to the brain
Settling point/set range
indicates the level at which a person's weight settles in response to caloric intake and energy use
Affiliation need
the need to build relationships and to feel part of a group
Self Esteem
one's feelings of high or low self-worth
Flow
a completely involved, focused state of consciousness, with diminished awareness of self and time, resulting from optimal engagement of one's skills
Industrial-organizational (I/O) Psychology
the application of psychological concepts and methods to optimizing human behavior in workplaces
Personnel psychology
a subfield of I/O psychology that focuses on employee recruitment, selection, placement, training, appraisal, and development
Organizational psychology
a subfield of I/O psychology that examines organizational influences on worker satisfaction and productivity and facilitates organizational change
Human factors psychology
a branch of psychology that explores how people and machines interact and how machines and physical environments can be made safe and easy to use
Structured Interviews
interview process that asks the same job-relevant questions of all applicants, each of whom is rated on established scales
Achievement motivation
a desire for significant accomplishment: for mastery of things, people, or ideas; for attaining a high standard
Grit
in psychology, grit is passion and perseverance in the pursuit of long-term goals
Task leadership
goal-oriented leadership that sets standards, organizes work, and focuses attention on goals
Social leadership
group-oriented leadership that builds teamwork, mediates conflict, and offers support
Interview illusion
We believe we can predict how people will act in different kinds of situations after only a brief meeting.
Unstructured interview
An interview in which the question-answer sequence is spontaneous, open-ended, and flexible.
360-degree feedback
a performance appraisal process in which feedback is obtained from the boss, subordinates, peers and coworkers, and the employees themselves
Halo errors
judgments based on personal qualities rather than on the job behavior
Lateral hypothalamus
The part of the hypothalamus that produces hunger signals
Ventromedial hypothalamus
The part of the hypothalamus that produces feelings of fullness as opposed to hunger, and causes one to stop eating.
Emotion
a response of the whole organism, involving (1) physiological arousal, (2) expressive behaviors, and (3) conscious experience
James-Lange theory
the theory that our experience of emotion is our awareness of our physiological responses to emotion-arousing stimuli
Cannon-Bard theory
the theory that an emotion-arousing stimulus simultaneously triggers (1) physiological responses and (2) the subjective experience of emotion
Two-factor theory (Schachter-Singer)
theory that to experience emotion one must be physically aroused and cognitively label the arousal
Polygraph
a machine used in attempts to detect lies that measures several of the physiological responses (such as perspiration, heart rate, and breathing changes) accompanying emotion
Facial feedback effect
the tendency of facial muscle states to trigger corresponding feelings such as fear, anger, or happiness
Spillover effect
arousal response to one event spills over into our response to the next event
Zajonc; LeDoux Emotion Theory
some embodied responses happen instantly, without conscious appraisal
Lazarus Emotion Theory
Cognitive appraisal sometimes without our awareness defines emotion
Behavior feedback phenomenon
the tendency of behavior to influence our own and others' thoughts, feelings, and actions
Catharsis
a release of emotional tension
Feel-good, do-good phenomenon
people's tendency to be helpful when already in a good mood
Subjective well-being
self-perceived happiness or satisfaction with life. Used along with measures of objective well-being (for example, physical and economic indicators) to evaluate people's quality of life.
Adaptation-level phenomenon
our tendency to form judgments (of sounds, of lights, of income) relative to a neutral level defined by our prior experience
Relative deprivation
the perception that one is worse off relative to those with whom one compares oneself
Valence
the attractiveness or desirability of a reward or outcome
Stress
the process by which we perceive and respond to certain events, called stressors, that we appraise as threatening or challenging
General adaptation syndrome (GAS)
Selye's concept of the body's adaptive response to stress in three phases—alarm, resistance, exhaustion.
Tend and befriend response
under stress, people (especially women) often provide support to others (tend) and bond with and seek support from others (befriend)
Psychophysiological illness
literally, "mind-body" illness; any stress-related physical illness, such as hypertension and some headaches
Psychoneuroimmunology
the study of how psychological, neural, and endocrine processes together affect the immune system and resulting health
Lymphocytes
A type of white blood cell that make antibodies to fight off infections
Coronary heart disease
the clogging of the vessels that nourish the heart muscle; the leading cause of death in many developed countries
Type A
Friedman and Rosenman's term for competitive, hard-driving, impatient, verbally aggressive, and anger-prone people
Type B
Friedman and Rosenman's term for easygoing, relaxed people
Stressor
an event or situation that causes stress
Stress reaction
the body's response to a stressor
Glucocorticoid stress hormones
secreted by the outer part of the adrenal glands on orders from the cerebral cortex (via the hypothalamus and pituitary gland)
Cortisol
stress hormone released by the adrenal cortex
Telomeres
Repeated DNA sequences at the ends of eukaryotic chromosomes.
Oxytocin
A hormone released by the posterior pituitary that stimulates uterine contractions during childbirth and milk ejection during breastfeeding.
B lymphocytes
form in the bone marrow and release antibodies that fight bacterial infections
T lymphocytes
form in the thymus and other lymphatic tissue and attack cancer cells, viruses, and foreign substances
Carcinogens
Cancer causing agents
Health psychology
a subfield of psychology that provides psychology's contribution to behavioral medicine
Aerobic exercise
sustained exercise that increases heart and lung fitness; may also alleviate depression and anxiety
Complementary and alternative medicine (CAM)
a diverse set of approaches and therapies for treating illness and promoting well-being that generally falls outside standard medical practices
Biofeedback
a system for electronically recording, amplifying, and feeding back information regarding a subtle physiological state, such as blood pressure or muscle tension
Relaxation response
a state of calm that can be reached if one or more relaxation techniques are practiced regularly
Psychological conflict
a struggle in the mind of a character
Approach-approach
Conflict that results from having to choose between two attractive alternatives
Avoidance-avoidance
Conflict that results from having to choose between two distasteful alternatives
Approach - avoidance
Conflict that results from having to choose an alternative that has both attractive and unappealing aspects
Double approach-avoidance
conflict in which the person must decide between two goals, with each goal possessing both positive and negative aspects
Free association
a method of exploring the unconscious in which the person relaxes and says whatever comes to mind, no matter how trivial or embarrassing
Psychoanalysis
Freud's theory of personality that attributes thoughts and actions to unconscious motives and conflicts; the techniques used in treating psychological disorders by seeking to expose and interpret unconscious tensions
Unconscious
according to Freud, a reservoir of mostly unacceptable thoughts, wishes, feelings, and memories. According to contemporary psychologists, information processing of which we are unaware.
Id (Pleasure Principle )
a reservoir of unconscious psychic energy that, according to Freud, strives to satisfy basic sexual and aggressive drives. The id operates on the pleasure principle, demanding immediate gratification.
Ego (Reality principle )
principle by which the ego functions; the satisfaction of the demands of the id only when negative consequences will not result
Superego
the part of personality that, according to Freud, represents internalized ideals and provides standards for judgment (the conscience) and for future aspirations
Psychosexual stages (Erogenous zones)
the childhood stages of development (oral, anal, phallic, latency, genital) during which, according to Freud, the id's pleasure-seeking energies focus on distinct erogenous zones
Oedipus complex
a boy's sexual desires toward his mother and feelings of jealousy and hatred for the rival father
Identification
the process by which, according to Freud, children incorporate their parents' values into their developing superegos
Fixation
according to Freud, a lingering focus of pleasure-seeking energies at an earlier psychosexual stage, in which conflicts were unresolved
Defense mechanisms
the ego's protective methods of reducing anxiety by unconsciously distorting reality
Repression
Defense mechanism by which anxiety-provoking thoughts and feelings are forced to the unconscious.
Psychodynamic theories
view personality with a focus on the unconscious and the importance of childhood experiences
Collective unconscious
Carl Jung's concept of a shared, inherited reservoir of memory traces from our species' history
Projective test
a personality test, such as the Rorschach, that provides ambiguous stimuli designed to trigger projection of one's inner dynamics
Thematic Apperception Test (TAT)
a projective test in which people express their inner feelings and interests through the stories they make up about ambiguous scenes