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Unit 3 > Perception And Memory > Flashcards

Flashcards in Perception And Memory Deck (11):
1

What is perception

Process by which the brain analyses and makes sense of incoming sensory information

2

What is segregation of objects

To perceive and image the brain segregated the image and the background to make the image into a coherent pattern

3

What is superimposition

Image of one object blocked by another
Makes first object look like it’s further away

4

What does object segregation rely on ?

Relative size , superimposition and relative height

5

What do neurotransmitters bind tov

Receptors

6

What determines if signal is excitatory or inhibitory?

Type of receptor

7

How will a signal be passed on

Of excitatory signal is stronger thank the inhibitory signal

8

Where are neurotransmitters removed from

Synaptic cleft after passing of impulse

9

What happens if neurotransmitter is left in synaptic cleft ?

Continuous stimulation of post synaptic membrane and system unable to respond to new signals

10

2 ways removal of neurotransmitters is achieved?

Enzyme degradation- neurotransmitter (acetylcholine) broken down by enzymes and non active products reabsorbed by post synaptic membrane

Reuptake of neurotransmitters- other neurotransmitters (nor-adenine) taken up directly by pre synaptic membrane

11

What does weak stimuli do?

Fail to cause release of sufficient molecules so impulse fails