Summary of Part 1: Basic Mechanisms. Micro vs Macro scales Micro = basic mechanisms common across brain areas Macro = differentiation, organization, and.

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Presentation transcript:

Summary of Part 1: Basic Mechanisms

Micro vs Macro scales Micro = basic mechanisms common across brain areas Macro = differentiation, organization, and interaction of areas Overview of macro scale before discussing cognitive abilities

In Transition From Part I: Basic Mechanisms To Part II: Cognition  08&feature=related 08&feature=related Spontaneous brain activity  e=related e=related miracle

General Functions of Cortical Lobes (how is this determined?)‏

Other (subcortical) Areas Hippocampus: rapid learning Thalamus:sensory input, attention Amygdala:emotion, fear/desire Basal Ganglia:motor control, gating of PFC Cerebellum: Coordinating movements Reward prediction system: dopamine release

Hierarchical sequences of transformations lines+colors Shapes Objects Object Meaning Plan Motor Plan Motor Movements Visual input V1/V2 Occipital V4 Occipital Inferior Temporal Ant. Pole Temporal PFC Frontal Supp. Motor Frontal Motor 1 Frontal Retina

Physical Details Amount of processing Input More processing for motor output Meaning Cortical Hierarchy

Multiple Interacting Pathways Early Vision Visual Object Recognition Audition Abstract Semantics Maintaining Abstract Information (plans, sensory info, etc) Movement Spatial Processing Touch

Interacting cortical pathways cSPfWxpw7op*hJYqBcQG*NLA_/WheresWald o.jpg cSPfWxpw7op*hJYqBcQG*NLA_/WheresWald o.jpg h h

Things on retina (lower visual system)‏ gun (higher visual system)‏ Gun

Things on retina (lower visual system)‏ Gun (Wallet) (higher visual system)‏ Gun

Tripartite Cognitive Architecture

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