PSYCH261 Lecture Notes - Ophthalmoscopy, Color Vision, Paul Broca

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Introduction
Chapter 1
Understanding consciousness
*Dualism – mind and body are separate substances
*Can’t trust your senses to convey reality
*Monism – mind is the brain
Consciousness as a physiological problem
*Awareness of and ability to communicate about ones thoughts, perceptions, memories,
and feelings
*Blindsight
*Above chance responding to blind field events
*Consciousness is NOT a property of all parts of the brain
*being
THE EASY PROBLEM
Which brain areas are associated with conscious experiences?
THE HARD PROBLEM
What do those conscious experiences feel like? (philosophical)
Consciousness as a physiological problem
Consciousness as a physiological problem
*Split brain patients
*Treatment for medication
resistant epilepsy
*Present odour to left
nostril – left hemisphere
identification is possible
*Present odour to right
nostril – left hand can
select the correct object
Consciousness as a physiological problem
*Unilateral Neglect
*Patient behaves as if the left half of the world has simply ceased to exist
*NOT a problem of perception or motor control
*A problem of mental representation
*Altering consciousness – the Rubber Hand Illusion
*Blindsight – how much are we really conscious of?
*Split brain – what does each hemisphere contribute to consciousness?
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Document Summary

*dualism mind and body are separate substances. *awareness of and ability to communicate about ones thoughts, perceptions, memories, and feelings. *consciousness is not a property of all parts of the brain. What do those conscious experiences feel like? (philosophical) *present odour to left nostril left hemisphere identification is possible. *present odour to right nostril left hand can select the correct object. *patient behaves as if the left half of the world has simply ceased to exist. *not a problem of perception or motor control. *generalization developing theories/laws that provide general conclusion based on many observations of similar phenomena. *reduction describing a behaviour in terms of the more elementary processes that underlie it. Reducing it to the smallest unit to be understandable and easier to study. *egyptians describe brain related illnesses (epilepsy, aphasia) *considered the brain to be the center of thought and emotions. *reflexes automatic, stereotyped movement produced as a direct result of a stimulus.

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