medial dorsal nucleus TA of thalamus

(redirected from mediodorsal nucleus)

me·di·al dorsal nu·cle·us [TA] of thal·a·mus

a large, composite cell group in the dorsomedial region of the thalamus having reciprocal connections with the entire extent of the frontal cortex anterior to the motor cortex (Brodmann area 4) and premotor cortex (Brodmann area 6). The afferent connections of the medial dorsal nucleus also include projections from the olfactory cortex and amygdala. Composed of a pars parvocellularis lateralis [TA] (lateral nucleus [TA] or parvocellular nucleus [TAalt]), a pars magnocellularis medialis [TA] (medial nucleus [TA] or magnocellular nucleus [TAalt]), and a pars paralaminaris [TA] (paralaminar part [TA] or pars laminaris [TAalt]).
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
Thalamic amnesia after infarct: the role of the mammillothalamic tract and mediodorsal nucleus. Neurology, vol.
The frontal cluster (yellow) included the anterior nucleus and the mediodorsal nucleus, which project to superior frontal and prefrontal areas.
activity of the anterodorsal nucleus, F(2, 42) = 24.053, p < .001, the anteroventral nucleus, F(2, 42) = 51.821, p < .001, and the mediodorsal nucleus, F(2, 42) = 36.944, p < .001.
A postmortem study of the mediodorsal nucleus of the thalamus in schizophrenia.
The study findings indicate dysfunction of the anterior thalamocortical tracts, which begin in the anterior mediodorsal nucleus of the thalamus, pass through the anterior internal capsule, and terminate in the anterior cingulate gyrus or prefrontal cortex, according to Dr.