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Lecture 7

Lecture 7 – Sensation and Perception

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Department
Psychology
Course
PSYCH 101
Professor
Martha Savage
Semester
Winter

Description
Lecture 7 – Sensation and Perception - our minds interpret what our senses detect - we construct perceptions drawing on both sensation and our experiences and expectations The Eye - cornea bends light - iris adjusts light intake - lens, changes shape, to focus incoming light rays into an image on the retina by process of accommodation The Retina - contains rod and cone cells - light  bipolar cells  ganglion cells  converge to form optic nerve  to the brain’s visual cortex via the thalamus - blind spot – where optic nerve leaves eye, there are no receptor cells - cones cluster in and around the fovea  for focusing - cones perceive colour  presence of lots of light - rods distributed more perip
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