PSYCH2750 (Part II): Final Exam Flashcards
What is temperament?
Individual differences in characteristic ways of responding to the world present in early life from which adult personality develops
-An aspect of personality concerned with emotional dispositions and reactions and their speed and intensity; the term often is used to refer to the prevailing mood or mood pattern of a person
Temperament vs. Personality
T = based in inherited biology, seen in early life (little effect of experience)
- “how” - style of expression
-e.g., typical mood, chronic level of activity, degree of emotional reactivity
M= modified through maturation, interaction with environment and experiences
-“what” or “why” - content that is expressed
-e.g., beliefs, values, and personal goals
Model of Temperament (Rothbart & Derryberry, 1981)
- Based on psychobiological models (links with underlying neural networks
- Broad dimensions
-Reactivity (affective, cognitive, behavioral)
-Extraversion
-Negative Affectivity
-Self-regulation/Effortful control - Basis of adult personality
Biological Level (5 parts)
- Temperament
- Personality neurosciencce
- Behavioral genetics
- Gene by environment interactions
- Evolutionary psychology
How is temperament different than adult personality?
Temperament is seen in immature life stages, Personality is seen at the mature life stages during adulthood
What are Rothbart & Derryberry’s three dimensions of temperament?
- Negative affectivity
- Surgency/positive affectivity (referring to the aspects of reactivity)
- Orienting/ regulation (referring to the emerging self-regulation abilites)
What are the 2 goals of personality neuroscience?
- What brain circuits/networks are associated with particular socially-relevant processes?
- How do individual differences in brain circuitry relate to individual differences in behavior?
What is BAS/ Positivity System
Behavioral Activation System (BAS)
-Sensitive to rewards (food, sex, praise, money, achievement)
-“GO!” - linked with appetitive, approach-related behavior
-Why?
-Dopaminergic system, Ventral Tegmental Area (VTA), Nucleus Accumbens (NA)
What is BIS/ Negativity System
Behavioral Inhibition System (BIS)
-Sensitive to threats & punishments (physical pain or discomfort, loss of money/ status)
-“STOP!” –Avoidance motivation/behavior
-Activates physiological arousal, heightened alterness, & inhibition of ongoing behavior
-“Fight or Flight” System
-Serotonergic System, error monitoring systems (ACC), amygdala
What is the Amygdala & what does it do?
- Negative, fear-eliciting stimuli (LeDoux, 1999)
- Most work in animal models
- Positive, approach-eliciting stimuli
- Computing significance: degree to which a stimulus may be a threat or reward (Barrett, 2006)
Dopamine & the reward circuit (2 systems)
- Mesocortical Pathway: connections to frontal cortex (thoughts)
- Reward Circuit/ Mesolimbic Pathway: Connections to limbic (emotion) system
What has high Dopamine & Behavior?
- Schizophrenia & Psychosis
- Approach Behaviors
What has low Dopamine & Behavior?
- Lethargy & anxiety
- Parkinson Disease
How do you measure BIS/BAS?
BAS Scale = drive, fun-seeking, Reward Responsiveness
BIS = “I worry about making mistakes” “Criticism/scolding hurts me”
Self-report in measuring BAS?
High BAS from self-reports :
1. Positive emotionality (hope, desire)
2. Extraversion
3. Active Coping
4. Novelty seeking
5. Irritative anger
EEG in measuring BIS/BAS?
Self-report in measuring BIS?
High BIS from self-reports:
1. Negative emotionality
2. Neuroticism
3. Kagan’s inhibition temperament dimension
4. Passive coping
5. Withdrawal/ Avoidance behaviors
6. Defensive anger
What is the default network?
Default Mode Network (DMN) or resting state network is the default mode of the brain that is active when remembering the past or envisioning the future.
-Social in nature
-Think about themselves and others, recall past interactions, envision upcoming ones
-Practical thoughts, frequent
-Potential role in constructing mental modes
-Implicated in psychosis, depression & ADHD
What is “Executive” Control?
Prefrontal Cortex (PFC)
-AKA: Cognitive Control, Self-Control, Inhibitory Control
-regulate for the sake of long-term abstract goals
-process that help enact goal-relevant behavior; inhibit inappropriate (goal-irrelevant) behavior.
What is Dual Process Models?
Dual Process Model: 2 parts
1. Evaluation (Limbic)
2. Executive (PFC)
What is the Evaluation part of the dual process model?
Evaluation System = Limbic System
1. Hot system
2. Emotional, affective (limbic)
3. Preexisting information
4. Involuntary
5. Stimulus Control
What is the Executive part of the dual process model?
Executive System = Prefrontal Cortex (PFC)
1. Cool System
2. Cognitive (PFC)
3. Present data; explicit
4. Slower, effortful, deliberate
5. Voluntary
6. Self- Control
What is behavioral genetics?
Behavioral Genetics look at variability in a population in a phenotypic trait (Personality)
-Question to what extent do genes vs. environment affect personality?