Perception

Chapter 4 Outline Notes Psychology Weiten 7th Edition

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Grant Clay Period 3 9/14/08 AP Psychology Outline Chapter 4: Sensation and Perception Red ? Definition Blue - Important Points Green - Important People & Contributions Sensation ? The Stimulation of Sense Organs. Perception ? the Selection, Organization, and interpretation of Sensory Input. Psychophysics: Basic Concepts & Issues Psychophysics - Study of how physical stimuli are translated into Psychological Experience. Gustav Fechner Psychophysics Psychologists in 1860?s at University of Leipzig. Wilhelm Wundt based lots of research upon Fechner. Question: For any Given Sense, what is the weakest detectable Stimulus? Absolute Threshold ? Minimum Stimulus Intensity that an Organism can detect.

Psyc Ch. 1-4

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*Final Exam: Thursday of Finals Week 8:00 PM - 10:00 PM in LH002 CHAPTER 1 Psychology Perspectives: Biological Behavioral Cognitive Psychodynamic Humanistic Sociocultural *Evolutionary psychology Eternally unresolved issues stability vs. change how stable are the traits and characteristics for an individual across a life span stages vs. linear development an individual is made up of his/her personal experiences as we progress through all stages, do individuals gradually collect skills and abilities that aggregate over time or do they appear spontaneously puberty is an example of a spontaneous change in physiology rationality vs. irrationality why do we use our rationale to resolve the irrational; how? nature vs. nurture genes vs. environment

Perception Notes

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Neuropsychological assessment

neuroscience

Optical illusion

Just-noticeable difference

Psychophysics

Subliminal stimuli

Chapter 5: Perception October 26, 2013 Pg 152-173 Perception Perception ? the process through which sensations (from enviro) are interpreted, using knowledge & understanding of the world, so they become meaningful to us. Taking new sensation, filling in missing info/use past experiences to make sense/give meaning to what we feel, see, and hear The Perception Paradox Perception is automatic and effortless So easy to do, yet so hard to understand Perceptual failures ? perception of a stimuli is different than what it actually is Maj of knowledge about perception comes from studying this Partly b/c brain wants to interpret everything as 3D Three Approaches to Perception

Weiten Chapter 4

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anatomy

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Color

Retina

Chapter 4: Sensation and Perception Vision: The Stimulus Light = electromagnetic radiation Amplitude: perception of brightness Wavelength: perception of color Purity: mix of wavelengths perception of saturation, or richness of colors. The Eye: A Living Optical Instrument The eye: housing and channeling Components: Cornea: where light enters the eye Lens: focuses the light rays on the retina Iris: colored ring of muscle, constricts or dilates via amount of light Pupil: regulates amount of light Figure 4.2 The human eye The Retina: The Brain?s Envoy in the Eye Retina: absorbs light, processes images Optic disk: optic nerve connection/blind spot Receptor cells: Rods: black and white/low light vision Cones: color and daylight vision

AP psych chapter 4 study guide

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Chapter 4: Sensation and Perception Study Guide ? Absolute Threshold: The minimum stimulus intensity that an organism can detect for a specific type of sensory input. Just Noticeable Difference (JND): The smallest difference in stimulus intensity that a specific sense can detect. The JND is a constant proportion of the size of the initial stimulus. Subliminal: ?Below Threshold? Subliminal Perception: The registration of sensory input without conscious awareness. Signal Detection Theory: The detection of stimuli involves decision processes as well as sensory processes, which are both influenced by a variety of factors besides stimulus intensity. Hits: Detecting signals when they are present. Miss: Failing to detect signals when they are present.

Sensation and Perception

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Grant Clay Period 3 9/14/08 AP Psychology Outline Chapter 4: Sensation and Perception Red ? Definition Blue - Important Points Green - Important People & Contributions Sensation ? The Stimulation of Sense Organs. Perception ? the Selection, Organization, and interpretation of Sensory Input. Psychophysics: Basic Concepts & Issues Psychophysics - Study of how physical stimuli are translated into Psychological Experience. Gustav Fechner Psychophysics Psychologists in 1860?s at University of Leipzig. Wilhelm Wundt based lots of research upon Fechner. Question: For any Given Sense, what is the weakest detectable Stimulus? Absolute Threshold ? Minimum Stimulus Intensity that an Organism can detect.

psyc notes chapter 4

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Sense

SENSATION is the stimulation of sense organs -Sensation involves the absorption of energy, such as light or sound waves, by sensory organs, such as the eyes and ears PERCEPTION is the selection, organization, and interpretation of sensory input -Perception involves organizing and translating sensory input into something meaningful Light is a form of electromagnetic radiation that travels as a wave, moving, natural enough, at the speed of light Amplitude: height of the light wave. Affects perception of brightness Wavelength: distance between peaks. Affects perception of color Purity: How varied the mix is. Influences perception of the saturation, or richness, of colors. Saturation refers to the relative amount of whiteness in a color. As whiteness declines, saturation increases -

sample for chapter for off cliffnotes

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AP Psychology Outline Chapter 4: Sensation and Perception ? Red ? Definition Blue - Important Points Green - Important People & Contributions ? Sensation ? The Stimulation of Sense Organs. Perception ? the Selection, Organization, and interpretation of Sensory Input. Psychophysics: Basic Concepts & Issues Psychophysics - Study of how physical stimuli are translated into Psychological Experience. Gustav Fechner ?????????????????????????????????????????????????????????????? i.????? Psychophysics Psychologists in 1860?s at University of Leipzig. ????????????????????????????????????????????????????????????? ii.????? Wilhelm Wundt based lots of research upon Fechner.