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Flashcards in Learning Deck (56)
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1

What long term synaptic changes occur in habituation?

Less presynaptic terminals of sensory neurons

2

Increase likelihood of behavior

Reinforcement

3

What is the purpose of habituation?

Allow the organism to ignore old or non-important cues and focus on learning new or important info

4

In fear conditioning, where does info about the CS and UCS converge?

Lateral nucleus of the amygdala

5

Learned reaction to a CS. Sam effect as UCR

Conditioned response

6

Three categories of responses to environment

Reflexes, instincts, and learning

7

What are habituation and sensitization both focused around?

Repetition of stimuli

8

How does the brain get information about UCSs?

Climbing fibers from the inferior olive (auditory pathway) of the medulla synapse on Purkinje fibers

9

How does learning occur in classical conditioning?

If the climbing fiber (UCS) and parallel fiber (CS) synapses onto a purkinje cell are activated at the same time

10

Is reinforcement or punishment more effective?

Reinforcement

11

What supports the amygdala's role in fear conditioning?

Lesion, recording (more activity in fear conditioning), and application of NMDA antagonist (block and the fear response goes away)

12

What happens if you lesion the hippocampus of an animal after they have already gone through a water maze?

It is like they have never gone through the maze before and it is their first time

13

DIAGRAM ON PAGE 23

DIAGRAM ON PAGE 23

14

Why was eyeblink classical conditioned studied in rabbits?

They have a nictitating membrane which is an extra membrane on the eyes that acts like a second eyelid

15

What part of the brain provides information about CSs and how does it communicate the info?

Cerebellar granule cells. Receive input via mossy fibers from the pons and communicate with the purkinje cells via parallel fibers

16

What is the purpose of sensitization?

Allow the organism to focus on dangerous, irritating, or annoying stimuli. Inc response in hopes of it going away

17

Consequences of a behavior shape future performance

Operant conditioning

18

What can reinforcement and punishment both be?

Positive (add something) or negative (take something away)

19

Unlearned reaction to a UCS

Unconditioned response

20

Neuronal activity to reflexes

Single stimulus causes sensory neuron to release NT which causes motor neuron to release NT which causes a reaction

21

Where do the cerebellar granule cells receive info from and pass it to and how?

Receive input via mossy fibers from the pons and communicate with the purkinje cells via parallel fibers

22

Three tests of spatial learning

Mazes, water mazes, and food caching

23

What part of the brain is involved in classical conditioning? Involved in learning and movement

Cerebellum

24

Grid cells. "Whats the environment"

Entorhinal cortex

25

What area of the brain is needed for learning to occur that was found in rabbits?

Interpositus nucleus of the cerebellum

26

Change in magnitude of response to environmental events. Habituation and sensitization

Non-associative learning

27

Difference between habituation and sensory adaptation

Habituation: Decrease the response
Sensory adaptation: Decreasing perception

28

Experience of one strong stimulus heightens the behavioral response to subsequent stimuli

Sensitization

29

Initially neutral stimulus that acquires the ability to signal important biological events. Learned cause

Conditioned stimulus

30

What happens at synapses in habituation and why?

Reduced activity at synapse between sensory and motor neurons; they reduce less NTs. It is a direct result of decreased glutamate release