Question

Dopamine is a type of neurotransmitter that is created from ____________. You know that dopamine is involved in motor movement (among many other things). You think that changes in dopamine signaling may be involved in the freezing behavior we observe in mice during classical conditioning experiments. To study this behavior, you would first want to know how activation of the __________ affects dopamine signaling, as this part of the brain is activated by aversive stimuli and can control the behavioral components of our emotional responses. You might also want to study the _________, the two structures of the midbrain that are involved in processing visual and auditory information as well as regulating species-typical behavior (like freezing behavior).

Group of answer choices

Tryptophan; central nucleus of the amygdala; tectum & tegmentum

Tyrosine; central nucleus of the amygdala; tectum & tegmentum

Tryptophan; paraventricular nucleus of the hypothalamus; telencephalon & diencephalon

Tyrosine; paraventricular nucleus of the hypothalamus; telencephalon & diencephalon

Answer 1

Correct Answer: Tyrosine; the central nucleus of the amygdala; tectum and tegmentum

The precursor of dopamine called L-Dopa can be synthesized directly from the non-essential aminoacid tyrosine.

The midbrain is composed of the rectum and tegmentum, which helps in the movement of eye, visual and auditory processing, etc.