Personality Notes CH7-11 Flashcards
What are physiological systems?
Organ systems within the body, such as the nervous system, cardiac system, and musculoskeletal system
Examples include the brain and nerves for the nervous system, heart and blood vessels for the cardiac system, and muscles and bones for the musculoskeletal system.
What is the typical finger length difference between females and males?
Females tend to have index fingers longer than their ring fingers, while males tend to have index fingers shorter than their ring fingers.
What is a theoretical bridge?
The connection between two different variables, such as dimensions of personality and physiological variables.
What are electrodes?
Sensors placed on the skin linked to a physiological recording machine to measure physiological variables.
What is telemetry?
The process of sending electrical signals from electrodes to a polygraph using radio waves.
What is the autonomic nervous system (ANS)?
Part of the peripheral nervous system that connects to vital bodily structures and maintains life, consisting of sympathetic and parasympathetic branches.
What is electrodermal activity?
Electricity flows across the skin with less resistance if damp with sweat, indicating changes in the sympathetic nervous system.
What is skin conductance?
The degree to which skin carries electricity, dependent on water content in the skin.
What is cardiac reactivity?
The increase in blood pressure and heart rate during stress, potentially contributing to coronary artery disease.
What characterizes a Type A personality?
Achievement motivation, time urgency, hostility, and aggressiveness, associated with increased risk of coronary heart disease.
What does neuroscience study?
The scientific study of the nervous system.
What are the four brain measures used in personality research?
- Brain function
- Brain structure
- Brain connections
- Brain electrical activity
What are two techniques to measure brain activation?
- Positron emission tomography (PET)
- Functional magnetic resonance imaging (fMRI)
What is the Human Connectome Project?
An ongoing effort to map the wiring diagram of the human brain and understand individual differences.
What does the ascending reticular activating system (ARAS) control?
Overall cortical arousal.
What is Eysenck’s theory of arousal level?
Extraverts have lower resting cortical arousal than introverts, leading them to seek more stimulation.
What is arousability?
The reactivity of nervous systems, where introverts are more easily aroused than extraverts.
What is reinforcement sensitivity theory?
A theory by Gray that models personality based on three biological systems: the behavioral activation system, fight-flight-freeze system, and behavioral inhibition system.
What is impulsivity?
A personality trait characterized by lowered self-control and acting before thinking.
What is anxiety?
An unpleasant emotional state associated with perceived threat.
What is the behavioral activation system (BAS)?
A system responsive to incentives that regulates approach behavior, correlated with extraversion.
What is the fight-flight-freeze system (FFFS)?
A system responsive to aversive stimuli that triggers avoidance-oriented behavior, correlated with fear-proneness.
What is the behavioral inhibition system (BIS)?
A system responsible for resolving goal conflict, characterized by anxiety and rumination.
What are the Big Two personality dimensions?
- Learning by punishment
- Learning by reward