Answer:
Acetylcholine
Explanation:
Acetylcholine is found in the brain, which is responsible for new learning or forming new memories.
Acetylcholine (ACh): It is one of the most ordinary type of neurotransmitter (a chemical released by a neuron or a nerve cell), found in the areas of the brain, peripheral nervous system, and spinal cord. It could surely enhance memory function. Therefore, various studies suggest that acetylcholine can suppress synaptic transmission along with the suppressing adaptation of neurons. If it gets suppressed then it will affect memory formation.
