The Collaborative International Dictionary
Striatum \Stri*a"tum\, n. [NL.] (Anat.) The corpus striatum.
Wiktionary
n. (context anatomy English) The caudate nucleus and the lentiform nucleus considered as a single structure
WordNet
n. a striped mass of white and grey matter located in front of the thalamus in each cerebral hemisphere; consists of the caudate nucleus and the lenticular nucleus [syn: corpus striatum, striate body]
Wikipedia
The striatum, also known as the neostriatum or striate nucleus, is a subcortical part of the forebrain and a critical component of the reward system. It receives glutamatergic and dopaminergic inputs from different sources and serves as the primary input to the basal ganglia system. In all primates, the dorsal striatum is divided by a white matter tract called the internal capsule into two sectors called the caudate nucleus and the putamen. The ventral striatum is composed of the nucleus accumbens and olfactory tubercle in primates. Functionally, the striatum coordinates multiple aspects of cognition, including motor and action planning, decision-making, motivation, reinforcement, and reward perception.
The corpus striatum, a macrostructure which contains the striatum, is composed of the entire striatum and the globus pallidus. The lenticular nucleus refers to the putamen together with the globus pallidus.
Usage examples of "striatum".
Other experiments have shown that activity in the area of the brain known as the amygdala is associated with the experience of fear, that the decisions of individual monkeys in certain games could be predicted by the firing patterns of individual neurons in the orbitofrontal-striatal circuits of the brain, that neurotransmitters known as propranolol and serotonin affect decision-making, and that the ventral putamen within the striatum is activated when people experience pleasure.
It is the substantia nigra that supplies the neurotransmitter dopamine to a larger area in the center of the brain, called the striatum, which controls movement and motor skills of the human body.
Not only were moral issues raised, but surgeons often disagreed as to which of the two sections of the striatum should receive the implanted tissue.
On the other hand, the corpus striatum, very important in avian brains because it received and integrated sensory perceptions, also appeared to play a significant role in Avionian brain function.
The region including the two nuclei is therefore called the corpus striatum.
On the same table there were the skulls of men, apes, fish and wild geese, also dissected, in order to shew the relation between neopallium and corpus striatum.
The most ancient of them surrounds the midbrain (and is made up mostly of what neuroanatomists call the olfactostriatum, the corpus striatum, and the globus pallidus).
On the other hand, the corpus striatum, very important in avian brains because it received and integrated sensory perceptions, also appeared to play a significant role in Avionian brain function.