AP PSYCHOLOGY

Detailed explanation-1: -Interneurons often release either glutamate or GABA, and sometimes both! These neurotransmitters are used to modulate nerve impulses between the afferent and efferent neurons. Complex networks of such interactions function in higher brain activities such as memory, perception, and emotion.

Detailed explanation-2: -So, the correct answer is ‘Thyroxine’.

Detailed explanation-3: -GABAergic interneurons are inhibitory neurons of the nervous system that play a vital role in neural circuitry and activity. They are so named due to their release of the neurotransmitter gamma-aminobutyric acid (GABA), and occupy different areas of the brain.

Detailed explanation-4: -The nerve cells of the central nervous system are all interneurons. In human brain, there are about 100 billion interneurons. Example is the Golgi cell found in the cerebellum. The interneurons receive impulses from the sensory neurons.