PSYC Ch. 7

the connection between two different variables

a sensor usually placed on the surface of the skin and linked to a physiological recording machine to measure physiological variables

a proccess by which electrical signals are sent from the participant to the polygraph through radio waves insted of by wires

a behavior characterized by impatience, competativeness and hostility

a structure in the brain stem thought to control overall cortical arousal

-eysenck originally thought it was responsible ofr the differences between intorverts and extroverts

• Gray's biological theory of personality. base on recent brain funciton research with animals.
• - based on 2 hypothesized biological systems in the brain: the behavioral activation system and the behavioral inhibition system

responsive to incentives such as cues for reward and regulates approach behavior

which is responsive to to cues for punishment, frustraiton, and uncertainty

the inability to inhibit responses

a dimension of personality postulated to have a physiological basis. It refers to the tendency to seek out thrilling and exciting activities, to take risks, and to avoid bordom

where 2 or more disorders simultaneously occur within the same individual

are chemicals in the nerve cells that are responsible for the transmission of a nerve impulse form one cell to another

is involved in activating the sympathetic nervous system for fight-or flight

• - novelty seeking- low levels of dopamine
• - harm avoidance- abnormalties in serotonin metabolism
• - reward dependence - low levels of norepinephrine