Cotterill, 1997; Tononi and Edelman, 1998; Crick and Koch, 2003, 2005; Edelman, 2003;) include the claustrum, most or all of the neocortex, the dorsal thalamic specific sensory relay nuclei, the intralaminar nuclei, and the thalamic reticular nucleus.
The analysis (Cotterill, 2001) concludes that the attention mechanism involves the thalamic intralaminar nuclei and the nucleus reticularis thalami.
Within the thalamus, the intralaminar nuclei (Bogen, 1995; Purpura and Schiff, 1997; Ysbrand et al.
Lying deep to the main cortical layers in the lateral part of the cerebral hemisphere and receiving ascending input from the intralaminar nuclei, the claustrum might or might not be a good candidate for participation in the generation of consciousness in mammals.
These thalamic nuclei, along with the intralaminar nuclei and the thalamic reticular nucleus, which is discussed below, are thought to be essential for higher levels of consciousness (e.
Here, the projections of the globus pallidus to the ventral anterior and ventral lateral (pars oralis) thalamic nuclei, VA and VLo, are shown, as are the globus pallidal projections to the intralaminar nuclei.
A set of nuclei that are homologous to the mammalian intralaminar nuclei are present in the same part of the thalamus and have similar pallial and striatopallidal circuitry.
The enkephalins are found mainly in those areas of the brain associated with pain control, including the periventricular area, the periaqueductal gray, the midline raphe nuclei, the substantia gelatinosa of the dorsal horns in the spinal cord, and the intralaminar nuclei
of the thalamus.