Lecture Notes for Week 4, Chapter 4
Lecture Notes for Week 4, Chapter 4 PSYCH 1001 - 01
U of M
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This 2 page Class Notes was uploaded by Isabella Sorensen on Monday October 12, 2015. The Class Notes belongs to PSYCH 1001 - 01 at U of M taught by Kathleen Briggs in Fall 2015. Since its upload, it has received 39 views. For similar materials see Introduction to Psychology in Psychlogy at U of M.
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Date Created: 10/12/15
Lecture Sensation and Perception 92815 Scienti c Study of Consciousness Transduction detection and sensitivity 0 Our Five Sensory Systems Vision eye retina LGN visual cortex Audition ear cochlea C mGN auditory cortex Touch Skin spinal cord thalamus somatosensory cortex Smell Nose olfactory mucosa olfactory bulb piriform cortex 0 Taste Tongue taste bud thalamus insuafronta operculum cortex Sensation Receiving sensing physical signals 0 Transduction Converting outside physical energy to physiological signals with different types of receptors Photoreceptors n retina Hair Cells In organ of corti Mechanoreceptors In dermis Olfactory Receptors n olfactory mucosa Taste Cells In taste buds in tongue 0 Vision Visual pathways and system 0 Sensitivity detection discrimination threshold just noticeable difference JND Weber39s law 0000 o Adaptation Sensitivity adjustment 0 High sensitivity gt Low threshold 0 Low sensitivity gt High threshold Lecture 930 Sensation and Perception Making Sense of the Sensory Input Seeing color motion depth etc Sensitivity Adjustment Adaption Signal Detection Theory mm Signa Detection Theory Sensitivity to signal vs response bias 0 Sensitive to Signal High hit rate Low false alarm rate 0 Liberal Response Bias High hit rate High false alarm rate 0 Conservative Response Bias Low hit rate Low false alarm rate a Perception Making Senses o Perception as inference 0 Seeing Processing position orientation coor motion depth 39Ell Helmholtz Perception as unconscious inference a Retinotopic Mapping Spaceretina gt Neurons in primary visual cortex neighboring neurons sensitive to neighboring locations in space Processing Features Orientation Receptive Field orientation selective neuron in primary visual cortex a Color Hue saturation lightness a Theories of Color Perception o YoungHelmholtz Trichromatic Theory 0 Hering Opponent Color Theory I Color BlindDe ciency More prevalent in males linked to X chromosomes 0 Monochromacy o Dichromacy o Anomalous Trichromacy mm Motion Aftereffect MotionSensitive neurons39 direction selective responses 4 Adaptation gt Afterimage Lecture Day 3 Oct 2 Perception Action Attention and Integration 0 Seeing in Depth 0 Oculomoter Cues Convergence of the eyes and accommodation 0 Binocular Cues Disparity between the R and L images 0 Pictorial Cues Monocular Cues Aerial perspective leaner perspective occlusion Shape from shading Perceptual Assumption Light coming from above unconscious inference Perceptual Constancy Lightness constancy color constancy size constancy Perception and Action Ventral vs Dorsal Pathways Attention Selection resource distribution 0 Searching for target de ned by conjunction of features requires focused attention 0 Posner s Attention Cue Validity Paradigm 0 Spatial attention could even be attracted to or repelled from invisible images Sensory Integration A compete experience 0 McGurk Effect Crossmodal sensory integration Superior temporal sulcus is a cortical locus
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