Single-cell persistent activity in anterodorsal thalamus
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چکیده
منابع مشابه
Single-cell persistent activity in anterodorsal thalamus.
The anterodorsal nucleus of the thalamus contains a high percentage of head-direction cells whose activities are correlated with an animal's directional heading in the horizontal plane. The firing of head-direction cells could involve self-sustaining reverberating activity in a recurrent network, but the thalamus by itself lacks strong excitatory recurrent synaptic connections to sustain tonic ...
متن کاملHead Direction Cell Activity in the Anterodorsal Thalamus
30 Neural activity in several limbic areas varies as a function of the animal's head direction 31 (HD) in the horizontal plane. Lesions of the vestibular periphery abolish this HD cell signal 32 suggesting an essential role for vestibular afference in HD signal generation. The organization 33 of brainstem pathways conveying vestibular information to the HD circuit is poorly understood, 34 howev...
متن کاملHead direction cell activity in the anterodorsal thalamus requires intact supragenual nuclei.
Neural activity in several limbic areas varies as a function of the animal's head direction (HD) in the horizontal plane. Lesions of the vestibular periphery abolish this HD cell signal, suggesting an essential role for vestibular afference in HD signal generation. The organization of brain stem pathways conveying vestibular information to the HD circuit is poorly understood; however, recent an...
متن کاملOptic flow stimuli update anterodorsal thalamus head direction neuronal activity in rats.
Head direction (HD) neurons fire selectively according to head orientation in the yaw plane relative to environmental landmark cues. Head movements provoke optic field flow signals that enter the vestibular nuclei, indicating head velocity, and hence angular displacements. To test whether optic field flow alone affects the directional firing of HD neurons, rats walked about on a circular platfo...
متن کاملImpaired head direction cell representation in the anterodorsal thalamus after lesions of the retrosplenial cortex.
The retrosplenial cortex (RSP), a brain region frequently linked to processes of spatial navigation, contains neurons that discharge as a function of a rat's head direction (HD). HD cells have been identified throughout the limbic system including the anterodorsal thalamus (ADN) and postsubiculum (PoS), both of which are reciprocally connected to the RSP. The functional relationship between HD ...
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ژورنال
عنوان ژورنال: Neuroscience Letters
سال: 2011
ISSN: 0304-3940
DOI: 10.1016/j.neulet.2011.02.051