Exam 1 Vocab Flashcards
Menarche
The time of first menstruation, one of the most important changes to occur among females during puberty
Endocrine system
The system of the body that produces, circulates, and regulates hormones
Hormones
Highly specialized substances secreted by one or more endocrine glands
Glands
Organs that stimulate particular parts of the body to respond in specific ways to particular hormones
Gonadotropin-releasing hormone (GnRH) neurons
Specialized neurons that are activated by certain pubertal hormones
Set point
A physiological level or setting (e.g., of a specific hormone) that the body attempts to maintain through a self-regulating system
Feedback loop
A cycle through which two or more bodily functions respond to and regulate each other, such as that formed by the hypothalamus, the pituitary gland, and the gonads
Pituitary gland
One of the chief glands responsible for regulating levels of hormones in the body
Hypothalamus
A part of the brain that controls the functioning of the pituitary gland
Gonads
The glands that secrete sex hormones: in males, the testes; in females, the ovaries
Testes
The male gonads
Ovaries
The female gonads
Androgens
A class of sex hormones secreted by the gonads, found in both sexes, but in higher levels among males than females following puberty
Estrogens
A class of sex hormones secreted by the gonads, found in both sexes, but in higher levels among females than males following puberty
HPG (hypothalamic-pituitary-gonadal) axis
The neurophysiological pathway that involves the hypothalamus, the pituitary gland, and the gonads
Adrenarche
The maturation of the adrenal glands that takes place during adolescence
Cortisol
A hormone produced when a person is exposed to stress
Leptin
A protein produced by the fat cells that may play a role in the onset of puberty
Organizational role (of hormones)
The process through which early exposure to hormones, especially prenatally, organizes the brain or other organs in anticipation of later changes in behavior or patterns of growth
Activational role (of hormones)
The process through which changes in hormone levels, especially at puberty, stimulate changes in the adolescent’s behavior, appearance, or growth
Adolescent growth spurt
The dramatic increase in height and weight that occurs during puberty
Peak height velocity
The point at which the adolescent is growing most rapidly
Epiphysis
The closing of the ends of bones, which terminates growth after the adolescent growth spurt has been completed
Secondary sex characteristics
The manifestations of sexual maturity at puberty, including the development of breasts, the growth of facial and body hair, and changes in the voice
Tanner stages
A widely used system that describes the five stages of pubertal development
Pheromones
A class of chemicals secreted by animals that stimulate certain behaviors in other members of the species
Secular trend
The tendency, over the past two centuries, for individuals to be larger in stature and to reach puberty earlier, primarily because of improvements in health and nutrition
Cross-sectional study
A study that compares two or more groups of individuals at one point in time
Longitudinal study
A study that follows the same group of individuals over time
Delayed phase preference
A pattern of sleep characterized by later sleep and wake times, which usually emerges during puberty
Melatonin
A hormone secreted by the brain that contributes to sleepiness
Basal metabolism rate
The minimal amount of energy used by the body during a resting state
Body mass index (BMI)
A measure of an individual’s body fat, the ratio of weight to height; used to gauge overweight and obesity
Disordered eating
Mild, moderate, or severe disturbance in eating habits and attitudes
Anorexia nervosa
An eating disorder found chiefly among young women, characterized by a dramatic and severe self-induced weight loss
Bulimia
An eating disorder found primarily among young women, characterized by a pattern of binge eating and extreme weight loss measures, including self-induced vomiting
Binge eating disorder
An eating disorder characterized by a pattern of binge eating that is not accompanied by drastic attempts to lose weight
Adolescent health care
A field of study and health care devoted to understanding the health care needs of individuals during the second decade of life
Graduated driver licensing
A licensing system in which full adult driving privileges are not granted all at once to teen drivers, but phased in over time
Deductive reasoning
A type of logical reasoning in which one draws logically necessary conclusions from a general set of premises, or givens
Metacognition
The process of thinking about thinking itself
Imaginary audience
The belief, often brought on by the heightened self-consciousness of early adolescence, that everyone is watching and evaluating one’s behavior
Personal fable
An adolescent’s belief that he or she is unique and therefore not subject to the rules that govern other people’s behavior
Cognitive-developmental view
A perspective on development, based on the work of Piaget, that takes a qualitative, stage-theory approach
Sensorimotor period
The first stage of cognitive development, according to Piaget, spanning the period roughly between birth and age 2
Preoperational period
The second stage of cognitive development, according to Piaget, spanning roughly ages 2-5
Concrete operations
The third stage of cognitive development, according to Piaget, spanning the period roughly between age 6 and early adolescence
Formal operations
The fourth stage of cognitive development, according to Piaget, spanning the period from early adolescence through adulthood
Information-processing perspective
A perspective on cognition that derives from the study of artificial intelligence and attempts to explain cognitive development in terms of the growth of specific components of the thinking process (such as memory)
Selective attention
The process by which we focus on one stimulus while tuning out another
Divided attention
The process of paying attention to two or more stimuli at the same time
Working memory
That aspect of memory in which information is held for a short time while a problem is being solved
Long-term memory
The ability to recall something from a long time ago
Autobiographical memory
The recall of personally meaningful past events
Functional magnetic resonance imaging (fMRI)
A technique used to produce images of the brain, often while the subject is performing some sort of mental task
Diffusion tensor imaging (DTI)
A technique used to produce images of the brain that shows connections among different regions
Brain structure
The physical form or composition of the brain
Brain function
Patterns of brain activity
Electroencephalography (EEG)
A technique for measuring electrical activity at different locations on the scalp
Event-related potentials (ERP)
Changes in electrical activity in areas of the brain in response to specific stimuli or events
Neurons
Nerve cells
Neurotransmitters
Specialized chemicals that carry electrical impulses between neurons
Synapse
The gap in space between neurons, across which neurotransmitters carry electrical impulses