1-28-S_P-Vision1 - Sensation & Perception: Intro & Vision I...

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1 Sensation & Perception: Sensation is the stimulation of sense organs Perception is the organization, integration and interpretation of sensory input
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2 Distal Stimulus Proximal Stimulus Transduction Processing Perception Proximal Distal Distal Stimulus Proximal Stimulus Transduction Processing Perception Transduction is the process by which physical stimuli are transformed ( transduced) into neural signals • This occurs via specialized receptors Vision: Rods & Cones Hearing: Hair Cells Distal Stimulus Proximal Stimulus Transduction Processing Perception
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3 • After information has been transduced into neural impulses, this information is then processed and interpreted by the brain Distal Stimulus Proximal Stimulus Transduction Processing Perception Distal Stimulus Proximal Stimulus Transduction Processing Perception • The integration and interpretation of sensory information leads to a perception Vision Light • The Eye • The Retina • Visual Pathways
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4 The Stimulus: Light • Light is a form of electromagnetic energy • The human visual system is sensitive to only a small range of electromagnetic energy The Stimulus: Light • Light travels as a wave and varies in wavelength and amplitude Wavelength primarily affects the perception of color Amplitude primarily affects the perception of brightness The Stimulus: Light Saturation • The light we normally see is a mixture of a number of wavelengths • The purity of this mixture affects the saturation of a color b the color’s richness
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5 Vision • Light The Eye • The Retina • Visual Pathways The Eye The eyes have two main functions 1. Housing the retina 2. Channeling light to the retina The Eye Cornea Iris Pupil Lens Retina Optic Nerve
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This note was uploaded on 05/23/2011 for the course PSYCHOLOGY 1101 taught by Professor Parks,nate during the Spring '08 term at Georgia Institute of Technology.

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1-28-S_P-Vision1 - Sensation & Perception: Intro & Vision I...

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