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Psychology 1010 Ohio University Hoyt Exam -2 questions and answers
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Psychology 1010 Ohio University Hoyt Exam -2 questions and answers
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Psychology 1010 OhioUniversity Hoyt Exam
#2 questions and
answers
Sensation - answer simple stimulation of a sense organ
Perception - answer the organization, identification, and
interpretation of a sensation in order to form a mental
representation
Transduction - answer what takes place when many sensors in the
body convert physical signals from the environment into encoded
neural signals sent to the central nervous system
Psychophysics - answer methods that measure the strength of a
stimulus and the observer's sensitivity to that stimulus
Absolute threshold - answer the minimal intensity needed to just
barely detect a stimulus 50% of the time
Just noticeable difference - answer the minimal change in a
stimulus that can just barely be detected
Weber's law - answer the just noticeable difference of a stimulus is
a constant proportion despite variations in intensity
,Signal detection theory - answer the response to a stimulus
depends both on a person's sensitivity to the stimulus in the
presence of noise and on a person's response criterion
Sensory Adaptation - answer sensitivity to prolonged stimulation
tends to decline over time as an organism adapts to current
conditions
3 processes of Sensation and Perception - answer translation,
extraction, interpretation
Translation - answer turning external stimulation into a neural
message
Extraction - answer breaking the message down into basic
components for processing
Interpretation - answer recombining all the processed information
Amplitude - answer brightness/intensity
Wavelength - answer Color
Purity - answer number of distinct wavelengths that make up the
light
What does the length of a light wave determine? - answer Hue
Retina - answer light-sensitive tissue lining the back of the eyeball
, Accommodation - answer the process by which the eye maintains a
clear image on the retina
Rods - answer
Cones - answer photoreceptors that become active under low light
conditions for night vision- INTENSITY 120 million on average
Fovea - answer an area of the retina where vision is the clearest
and there are no rods at all
Blind spot - answer a location in the visual field that produces no
sensation on the retina
How do we see color (theories)? - answer Trichromatic theory- 3
different types of cones detect 3 different primary colors- Red,
green, blue
Opponent Processing Theory- 3 different cone types with 6 primary
colors in pairs: red&green, blue &yellow, black&white
Shortest Wavelength - answer Purple
Longest Wavelength - answer Red
Area V1 - answer part of the occipital lobe that contains the
primary visual cortex
Failure detectors - answer single types of cells responsible for
specific information
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