Unit 7 Flashcards
motivation
a need or desire that energizes and directs behavior.
instinct
a complex behavior that is rigidly patterned throughout a species and is unlearned.
physiological need
a basic bodily requirement.
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 output.
asexual
having little to no sexual attraction to others
testosterone
the most important male sex hormone. Both males and females have it, but the additional testosterone in males stimulates the growth of the male sex organs during the fetal period and the development of the male sex characteristics during puberty.
estrogen
sex hormones, such as estradiol, that contribute to female sex characteristics and are secreted in greater amounts by females than by males. Estrogen levels peak during ovulation. In nonhuman mammals, this promotes sexual receptivity.
obesity
defined as a body mass index (BMI) measurement of 30 or higher. (Overweight individuals have a BMI of 25 or higher.)
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.
affiliation need
the need to build relationships and to feel part of a group.
ostracism
deliberate social exclusion of individuals or groups.
narcissism
excessive self-love and self-absorption
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.
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 an emotion-arousing stimulus: stimulus → arousal → emotion.
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
the Schachter-Singer theory that to experience emotion one must
(1) be physically aroused and
(2) 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 behavior to influence our own and others’ thoughts, feelings, and actions.
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).
health psychology
a subfield of psychology that provides psychology’s contribution to behavioral medicine.