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Color

AP Psych Notes

Subject: 
Psychology
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Dream
Mental processes
neuroscience
Neurophysiology
Parasomnias
Sleep
Non-rapid eye movement sleep
Rapid eye movement sleep
Lucid dream
Consciousness
Level of consciousness
Color

What influences our perception? Signal detection theory ? Predict how and when we detect the presence of an important stimulus (signal) over background stimulation (noise) ? Argues that there is no single absolute threshold and that detection depends partly on a person?s experience, expectations, motivation, and alertness o AKA= absolute threshold is subjective ? Goal is to find why people respond differently to the same stimuli and why the same person?s reaction vary as circumstances change. o How some teachers respond to text messages o Exhausted parents will hear slightest whimper of newborn baby Experiences matter! Schemata (schemas) creates?. ? Perceptual sets: the predisposition to perceive something in a certain way.

Weiten Chapter 4

Subject: 
Psychology
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anatomy
Mind
nervous system
Visual system
Perception
Sensory system
Image processing
Color
Sensation
Color vision
Receptive field
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
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