First, to test if these transients may arise from subcortical sources, we recorded neuronal activity in the spinal trigeminal nucleus (SpV), the origin of subcortical input to POm (Veinante et al. 2000).
However, the functional significance of these subcortical inputs remains controversial [4].
However, the functional significance of these subcortical inputs remains controversial [ 4].
Historically, most attempts to model cortical visual responses do not consider the contribution of direct subcortical inputs that may bypass striate cortex, such as input to V5/MT+.
Moreover, defining temporal activity dynamics beyond mean firing rate, for example, oscillatory synchronization, is a key to understanding the impact of different subcortical inputs on spontaneous thalamic activity, as established for functionally related somatosensory thalamic nuclei (Slézia et al. 2011).
Recent reports (Schmid et al. 2010), however, have confirmed the existence of direct subcortical inputs to V5/MT bypassing V1, thus excitability changes in V5/MT divergent from those in EVC could allude to the pathways by which vestibular signals could modulate visual cortex.
The relative weight of local versus subcortical inputs is intimately linked to our understanding of how information is extracted by the cortex from its thalamic input.
These results highlight the important and previously unrecognized role of long-range subcortical inputs from the BF in the generation of cognitive ERPs.
These findings highlight the important and previously unrecognized role of long-range subcortical inputs from the BF in generating cognitive ERPs.
A second group of 4 animals was used to assess the consistency of the pattern of local, long-distance, and subcortical inputs by making injections in TEO, F5, 9/46d, 8, and 7A.
