BIOC32H3 Lecture Notes - Lecture 10: Primary Motor Cortex, Cerebral Cortex, Basal Ganglia
Document Summary
Functional specializations of the cerebral cortex: once the sensory regions have received and processed inputs, send outputs to the association areas, association areas integrate somatic, special senses, musculoskeletal information into awareness - perception. Lateralisation of the brain: the older you get the less plastic the brain is. Emotion and motivation: the limbic system: difficult to define, difficult to voluntarily turn on or off, amygdala = emotional centre of the brain, artificial stimulation of amygdala leads to fear and anxiety. Lesions of the amygdala cause less aggression and hypersexuality: combined represent an overlap in the behavioural state system and cognitive system, the link between emotions and physiological functions. Information is cycled between the hypothalamus, limbic system, cerebral cortex. 3 main modulatory systems of the body: 1. Leads to reflex responses (often involuntary: 2. Behavioural state system: e. g sleep-wake cycle, limbic system (emotion and motivation) Stimulus: the sight of a drink or hypothalamus senses an increase in osmolarity, so triggers thirst: 2.
