Psychology and Sociology Flashcards
(337 cards)
acetylcholine (ACh)
neurotransmitter used at the neuromuscular junction, throughout the parasympathetic nervous system, and by the preganglionic neurons of the sympathetic nervous system.
acetylcholinesterase
enzyme that breaks down acetylcholine (ACh) in the synaptic cleft
achieved status
statuses that are considered to be largely due to an individual’s efforts.
acquisition
In classical conditioning, the process of learning the association between a conditioned stimulus and response.
action potential
A localized change in a neuron’s membrane potential that propagates away from its point of origin. Action potentials are all or none processes mediated by the opening of voltage-gated Na+ and K+ channels when the membrane is brought to threshold potential; opening Na+ channels causes characteristic depolarization, while opening K+ channels will repolarize the membrane.
activation-synthesis theory
The theory that dreams are due to brain activation during our REM sleep and they are not necessarily meaningful or purposeful
actor-observer bias
We are likely to blame our actions on the situation and blame the actions of others on their personalities.
adrenal cortex
The outer region of the adrenal gland. It produces cortisol in response to long-term (chronic) stress. It produces aldosterone in response to low blood pressure or low blood osmolarity.
adrenal medulla
This is the inner region of the adrenal gland. It is part of the sympathetic nervous system and will release epinephrine (adrenaline
) and norepinephrine into the bloodstream when stimulated. Epi and norepinephrine prolong and enhance the effect of sympathetic stimulation on the body. (fight or flight)
adrenocorticotropic hormone (ACTH)
A tropic hormone produced by the anterior pituitary gland that targets the adrenal cortex (outer part of adrenal gland) and stimulates it to release cortisol and aldosterone.
affect
a person’s visible emotion in the moment
aggregate
people who exist in the same space but do not interact or share a common sense of identity.
Ainsworth, Mary
She is known for her “strange situation experiments” where mothers would leave their infants in an unfamiliar environment and see how they react. This provided a distinction between securely and insecurely attached infants.
alpha waves
low amplitude, high frequency brain waves that are present in a relaxed state. Alpha waves are the first sign that someone is ready to drift off to sleep.
altruism
behavior that helps ensure the success or survival of the rest of a social group, possibly at the expense of that individual.
Alzheimer’s Disease
the most prevalent form of dementia, this disease is characterized behaviorally by an inability to form new memories- known as anterograde amnesia. Damage to parietal lobe is common.
amalgamation
occurs when majority and minority groups combine and form a new group
amygdala
almond-shaped structure deep within the brain that orchestrates emotional experiences.
anal stage (Freud’s psychosexual stages)
This is the second of five psychosexual stages outlines by Freud, and child seeks pleasure through control of elimination.
anterior pituitary gland
This is also known as the adenohypophysis. This is made of glandular tissue and secretes SIX different hormones: FSH, LH, ACTH, TSH, prolactin, and growth hormone. The anterior pituitary is controlled by releasing and inhibiting factors from the hypothalamus.
anterograde amnesia
inability to form new memories
antisocial personality disorder
A psychological disorder when person has history of serious behavior problems beginning in adolescence (significant aggression against people or animals, property destruction, lying, theft, serious rule violation)
anxiety disorder
emotional state of constant preparation for fight or flee- very unpleasant mental arousal. In this disorder, anxiety is frequent, intense, and irrational. Causes significant distress or impairment of normal functioning.
aqueous humor
A thin, watery fluid found in the anterior compartment of the eye (between the lens and cornea). It is constantly produces and drained, helps bring nutrients to the lens and cornea and remove metabolic waste.