NSCI 201 Chapter Notes - Chapter 29: Basal Ganglia, Limbic System, Reticular Formation
8 May 2016
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Again, emotions are tied to visceral nervous system, similar to ght/ ight more sympathetic, arousing. Most emotions create behavioural acting plans, and change both our physiology and cognitive ability. Our own subjective experiences of emotions are dif cult to study. When smile was induced through stimulations, patient reported happy feelings. Emotions may be modulated through feedback from periphery. People with higher spinal cord damage may report dulled emotions. The production of facial expressions goes through two separate pathways: voluntary and involuntary. Voluntary facial paresis: cannot produce voluntary smile, but can smile involuntarily. Emotional facial paresis: can voluntarily control facial expressions, cannot smile involuntarily. Same motor neurons can be getting input from different drive centers in the cortex. Brain regions suf cient for the expression of emotional behaviour! A phenomenon called sham rage" can occur if large regions of a rat"s brain are removed (cortex, basal ganglia, etc. except for midbrain, brainstem, dorsal part of hypothalamus).
