Meredith and colleagues (2004) demonstrated that IMHV brain tissue had higher glutamate neurotransmitter levels in chicks imprinted on a visual stimulus compared to chicks not imprinted on a visual stimulus. In contrast, the neurotransmitter GABA did not differ in these groups. Which of the following is NOT a valid conclusion from their study?
A) Glutamate and GABA are released in varying amounts in individuals. B) Neurotransmitter release is associated with learning. C) Learning is associated with changes in the brain. D) Glutamate release is associated with imprinting. E) GABA plays an important role in learning.