Flashcards in Perception And Memory Deck (11):
What is perception
Process by which the brain analyses and makes sense of incoming sensory information
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
What is superimposition
Image of one object blocked by another
Makes first object look like it’s further away
What does object segregation rely on ?
Relative size , superimposition and relative height
What do neurotransmitters bind tov
What determines if signal is excitatory or inhibitory?
Type of receptor
How will a signal be passed on
Of excitatory signal is stronger thank the inhibitory signal
Where are neurotransmitters removed from
Synaptic cleft after passing of impulse
What happens if neurotransmitter is left in synaptic cleft ?
Continuous stimulation of post synaptic membrane and system unable to respond to new signals
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