real Q1 - Intro, Nero, CC, OC Flashcards
(41 cards)
nativism
humans are shaped primarily by their inherited nature
fixed at birth
empiricism
humans are primarily shaped by their experiences - nurture
behaviorism
focus on behavior bc it’s observable, quantifiable, and objective
nature vs nurture
nature: what we’re born with
nurture: shaped by experience
Learning
the process by which changes in behavior arise as the result of experience interacting with the world
Memory
the record of our past experiences, which are acquired through learning
hippocampus
memory consolidation to LTM
learning new facts
amygdala
controls the impact of emotions on memory
- emotional memory
Basal ganglia
planning and producing skilled movements
MRI vs fMRI
MRI: detects water density
fMRI: detects blood flow activation
neural plasticity
re-wiring of the brain based on experience
the brain is always changing
- adapts to make up deficits
- make more/less transmitter
- Have more/less receptors
- Make synapses bigger/smaller
- Eliminate synapses/make new synapses
Neural Plasticity types (2)
- LTP – long-term potentiation
- LTD – long-term depression
Neural Plasticity and Learning
- Experience provokes neural plasticity
- This neural plasticity alters the way the brain processes information
- On the next experience, behavior will be altered
ex. in rats raised in enriched environments, neurons make more synaptic contacts
classical conditioning steps (2)
- Begins with an innate (unlearned) reflex
- Unconditioned stimulus (US): food
- Unconditioned response (UR): salivation - A neutral stimulus (CS) is then repeatedly presented before the reflex is triggered, producing a new reflex
- Conditioned stimulus (CS): bell
- Conditioned response (CR): salivation
conditioned compensatory response
CR that is the opposite of the UR, helping to balance/correct for the US-UR reflex
- Inject adrenaline (US) -> heart rate increase (UR)
- Repeat procedure in same testing chamber (CS)
Eventually, CS comes to produce a decrease in heart rate (CR) that helps maintain homeostasis (balance) against expected adrenaline injection = tolerance - testing chamber evokes a CR that weakens the overall effects of the drug
extinction
Breaking the association between the CS and US can extinguish the new CS->CR reflex:
- Present the CS alone repeatedly.
- Initially, CS evokes strong CRs.
- With repetition, however, CS becomes less effective, similar to beginning of training
timing
- Delay conditioning: best learning
- Trace conditioning: optimal interstimulus interval (ISI) with less learning at delays too short or too long
Operant Conditioning
S->R->O
context->response->outcomes
- law of effect
Law of Effect
- behaviors with positive effects are repeated
- behaviors with negative effects are not
O: outcomes
determine change in behavior
Positive Reinforcement
If it leads to positive effects, do it more
ex. Study-> get a good grade
Study more
Negative Reinforcement (escape)
If it ends/avoids a negative effect, do it more
- do something to end behavior
ex. Take aspirin -> Headache ends
Take aspirin for pain more often
Positive Punishment
If it leads to negative effects, do it less
ex. Arrive late -> Points off
Arrive late less often
R: response - Behavioral Unit
class of behaviors producing an effect
- using any mean to get to an end: goal or intention