PSY100H1 Chapter Notes - Chapter 5: Contrast Effect, Binocular Disparity, Thalamus

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PSY100H1 Full Course Notes
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PSY100H1 Full Course Notes
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Sensation: the sense organs" responses to external stimuli and the transmission of these responses to the brain. Perception: the processing and interpretation of sensory signals, it results in an internal representation of that stimulus. * coarse coding: sensory qualities coded by few receptors that respond to broad range of stimuli. Psychophysics: ernst weber and gustav fechner- examines our psychological experiences of physical stimuli: examines how much physical energy is require for our organs to detect stimulus, how much change is required before we notice change. Ex: picking up pen stapler vs. textbook and slightly heavier textbook. * compare hit rate with false alarm rate participant"s sensitivity to signal (validity) Response bias: amount of evidence needed for observer to say signal is present. Ex: radiologist needs a lot of evidence to make sure tumour is there vs. doctor looking at broken bone (having a cast on not as big of a deal if mistake vs. cancer treatment)

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