PSYC 2200 Lecture Notes - Lecture 21: Default Mode Network, Spatial Cognition, Serotonergic
19 Nov 2020
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Document Summary
The wakefulness network starts with the reticular formation which includes the raphe (in. The locus coeruleus also sends excitatory projections to the cortex and limbic system. Serotonergic neurons of the raphe nuclei play an important role in wakefulness by. Modulated by the reticular activating system: a content component-- awareness of self and environment, including sensations, 2 main components of consciousness (brainstem) emotions, and thoughts. Subserved by complex cortical function that may be modulated by a switch in the pons (brainstem). This is the same region that switches our brain from wake to. Activates cortical networks that use acetylcholine (green). (norepinephrine) blocking the activity of pons neurons that trigger rem sleep. Information comes from spinal cord to medulla pons and up to cortex. The content (cortical) component of consciousness can further be divided into 2 states- task driven and resting state own child during fmri.
