Lecture- brain.docx

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Department
Cognitive Science
Course
COG SCI 190
Professor
Terry Regier
Semester
Fall

Description
Lecture: turn to brain • How does neuroscience fit into cognitive science? • Marr’s 3 levels with Nuerons o Computation theory  The functional goal of the visual system is to determine the shape  of  objects in the world o Representation and algorithm  3D pictures and hierarchy o Hardware implementation  Neurons, somehow… • Caveat o Marr’s framework says we investigate the different levels independently of each  other o Assumption that could lead us astray o Top down v. bottom up th • Dualism 17  century – Descartes o Mind body problem  If minds and bodies are different kinds of things how does information  get to the mind from the senses? The mind causes the body to act? o Descartes’ solution: Pineal gland o Gall and Phrenology: segmented mapping of the brain for functions o Lombroso: criminal type • How is the brain actually organized? o New to old  ▯Forebrain to midbrain to hindbrain o Corpus callosum – connects hemispheres o Diencephalon­ thalamus pituitary, pineal o Midbrain­ primitive sensory/motor o Cerebellum, pons and medulla­ the hindbrain (responsible for balance, posture,  some motor control) • 4 lobes o Frontal: motor control, speech, planning o Parietal: spatial, sensory integration o Temporal: objects, auditory o Occipital: vision • Phineas Gage o Frontal lob penetrated with a huge bar – lost planning abilities • The 2 hemispheres
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