QUESTION 1 Which neurotransmitter is most important for the cortical changes tha

Question

QUESTION 1 Which neurotransmitter is most important for the cortical changes that occur during a critical period? Norepinephrine Glutamate GABA Acetylcholine QUESTION 2 An adult cat is deprived of visual stimulation in one eye for a year. After that time, you record from cells in the visual cortex in response to light stimulus on both eyes Which outcome would you expect? Most cells are non-responsive Most cells are activated to some degree by stimulation in both eyes Most cells are activated only by stimulation to the non-deprived eye. Most cells are activated only by stimulation to the deprived eye. QUESTION 3 Which evidence best supports the idea that long-term declarative memories are not stored in the hippocampus? Electroconvulsive therapy can lead to retrograde amnesia. Rats cannot learn to find an underwater platform if the hippocampus has been lesioned prior to testing. H.M. could recall memories from his childhood. H.M. could learn to play the piano.

Explanation / Answer

1. Answer: GABA

Explanation: GABA (gamma amino butyric acid) is distributed in the cortical cells of the neuron. It regulates communication between brain cells. Under conditions of overexcitation of nerve cells, GABA controls anxiety. It sends chemical messages and regulates communication between brain cells.

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