The ventral striatum is composed of the nucleus accumbens and olfactory tubercle, whereas the dorsal striatum is composed of the caudate nucleus and putamen.
12.
Retinal projections have also been found in layer II of the olfactory tubercle, suggesting that it constitutes a region of olfactory and visual convergence.
13.
The most common cell types in the olfactory tubercle are medium-size dense spine cells found predominantly in layer II ( dense cell layer ).
14.
The "'olfactory tubercle "'( OT, tuberculum olfactorium ) is a multi-sensory processing center in the olfactory cortex that plays a role in reward behaviors.
15.
Rats have been shown to administer cocaine into the olfactory tubercle more than the nucleus accumbens and ventral pallidum, other reward centers in the brain.
16.
Because the olfactory tubercle is a component of the ventral striatum, it is heavily interconnected with several affective-, reward-, and motivation-related centers of the brain.
17.
Thus, the olfactory tubercle may also play an important role in the mediation of odor approach and odor avoidance behavior, probably in a state-dependent manner.
18.
It has been suggested that the olfactory tubercle may be crucial in determining the source of olfactory information and responds to odor inhalations that are attended to.
19.
The lateral portion of the olfactory tubercle ( which adjoins the olfactory tract ) receives the densest fiber input and the medial portion receives light fiber projections.
20.
The dorsal striatum is divided into the caudate and putamen by the internal capsule while the ventral striatum is composed of the nucleus accumbens and olfactory tubercle.
