The term posterior cortical hot zone was coined by Christof Koch and colleagues to describe the part of the neocortex closely associated with the minimal neural substrate essential for conscious perception.[1] The posterior cortical hot zone includes sensory cortical areas in the parietal, temporal, and occipital lobes. It is the “sensory” cortex, much as the frontal cortex is the “action” cortex.
When parts of the posterior cortex are damaged, whole modalities of sensory experience disappear from both waking and dreaming. For example, individuals with a lesion in the Visual area V4 often do not perceive color and dream in black-and-white; those with a lesion in the Visual area V5/MT do not perceive motion and do not dream of motion; subjects with a lesion to fusiform gyrus are impaired in face perception and also do not dream of faces.[2] Compare that to lesions of the cerebellum or frontal cortex that have little effect on sensory experience.
^Koch, Christof; Massimini, Marcello; Boly, Melanie; Tononi, Giulio (1 May 2016). "Neural correlates of consciousness: progress and problems". Nature Reviews Neuroscience. 17 (5): 307–321. doi:10.1038/nrn.2016.22. PMID 27094080. S2CID 5395332.
^Solms, Mark (December 2000). "Dreaming and REM sleep are controlled by different brain mechanisms". Behavioral and Brain Sciences. 23 (6): 843–850. doi:10.1017/S0140525X00003988. PMID 11515144. S2CID 7264870.
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