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6-8% of the AP exam will come from this chapter!
6-8% of the AP exam will come from this chapter!
Famous Psychologists for Unit 2
Famous Psychologists for Unit 2
Ernst Weber
Ernst pioneered the study on just noticeable difference (JND). It became known as Weber's law; the JND between stimuli is a constant fraction of the intensity of the standard stimulus. E.g. the bigger the standard stimulus, the larger increment needed to get a noticeable difference
Gustav Fechner
He was a German scientist and philosopher who studied our awareness of faint stimuli and labeled them absolute thresholds; He also worked with JND and built off of Weber's Law.
David Hubel and Torsten Wiesel
They discovered feature detectors, groups of neurons in the visual cortex that respond to different types of visual stimuli
Hermann von Helmholtz
Hermann was a German physiologist who demonstrated that the movement of impulses in the nerves and in the brain was not instantaneous, but instead took a small but finite amount of time.
He is also considered the father of the field of sensory psychology. he is credited with creating the Place Theory of Sound and Trichromatic theory.
Thomas Young
Thomas helped create the Trichromatic theory (aka Young-Helmholtz Theory)
Max Wertheimer
Max is the founder of Gestalt Psychology who also studied "phi phenomenon." He believed that some complex perceptions cannot be reduced to simpler sensory experiences and that the mind operated on general organizing principles to perceive some complex sensory stimuli based on properties like proximity, similarity and closure.
Linda Bartishuk
Linda studies sensitivity of the tongue and believed people vary considerably in their sensitivity to certain tastes. She believes the individual differences depend in part on the density of taste buds on the tongue, which appears to be a matter of genetic inheritance.
Eleanor J. Gibson and Richard D. Walk
They developed the visual cliff to study whether depth perception was innate.
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