Sensation and Perception 1 - 4

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Can you name the Sensation and Perception Ch. 1-4?

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2 components that make up rhodopsin
a cell that responds only to a specific stimulus
inability to recognize objects as wholes, only parts of them.
all the thins in our environment we could potentially perceive
concatenated column made up of the 3 columns in the striate
 
rapid increase of positive charge in a nerve fibre that traveles down the fiber. Also called the nerve impulse.
genetic disorder causing the degradation of the retin
What is a property of the optic nerve cell (ganglion cell)
neurons in this cortex respond preferentially to specific forms
type of neuron important for perception specialized to respond to environmental stimuli
column in the striate cortex where all neurons are grouped have their receptive field at the same place as on the retina
gathers and concentrates light to form objects on the retina.
longest wavelength on the electromagnetic spectrum
the hypothesis that an area’s appearance is influenced in part by the surroundings that the area appears to belong to. This principal has been used to explain White’s Illusion
interval between one action potential occuring and the next is being generated
column in the striate cortex that contain cells that respond best to a particular orient. Adjacent columns have only slight variation
disorder which makes the someone unable to recognize faces
automatic response that makes the 2 pupils the same size
made up of only cones. More detailed vision
excititory and inhibitory areas are arranged side by side. This cell responds best to bars of a particular orientation
example of a feature detector
the difference in intensity at which the bars can barely be seen
the point where the observer reliably marks the difference between standard and comparator stimuli
theory stating that detection of a stimulus depends on both the participant's sensitivity to the stimulus and their response criterion
once a response is triggered it travels all the way down the axon without decreasing in size
part of a neuron that conducts nerve impulses over distances. Aka nerve fibre.
shift from cone vision to rod vision that causes enhanced perception of short wavelengths during dark adaptation
band of energy in the electromagnetic spectrum visible to the human naked eye
an observer's sensitivity to light at each wavelength accross the visible spectrum
which LGN layers receive signals from the ipsilateral eye?
difference in electrical charge between the inside and outside of a cell
QuestionAnswer
shortest wavelength on the electromagnetic spectrum
physiological effect of selective adaptation on neurons
the competition between the center and surround regions of a centre surround receptive field, caused by the fact that one is excitatory and the other is inhibitory. Stimulation the
visual pigment molecules in rods
neuron becoming more positive. preparing for action potential
condition marked by the destruction of foveal receptors creates a blind spot. common in old people
A conscious sensory experience
processing based on incoming data
ability to see fine detail
changes shape to adjust the eye's focus for objects at differing distances
area activated by indoor/outdoor rooms, contains info about spatial layout
response of proportion of neurons can be shaped by experience
map in which each point on the LGN corresponds to the point on the retina
knowledge based processing
eyeball is too short. Near objects don't focus
smallest amount of difference a person can detect
cells that respond best to corners and angles
remove/destruct tissue from the nerves system
group of neurons with similar selective responses
representation of a particular object in the environment by patterns of firing groups of neurons specialized to recognize a specific stimulus
specialized cell for coloured vision, detailed vision, and photopic vision
-70mV
normal eye
representation of a particular object in the environment by the firing of neurons tuned to respond specifically to that object
to measure absolute threshold. The Experimenter presents stimuli in ascending/descending order
small area where the optic never leaves the back of the eye. No visual receptors in they area.
column in the striate cortex where neurons are grouped based on what eye they respond better to
disorder where the cornea or lens bends too much
inhibition that's transmitted across the retina
pathway from v1 to the temporal lobe. responsible for identifying an obj.
the nucleus in the thalamas that receives inputs from the optic nerve and cortex, and in turn sends fibers to the cortex
impinging on receptors results in an internalized schema of the stimulus
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area in the retina in which light alters the firing rates of a cell
area involved in controlling eye movements and other visual behaviors
in vision, bringing objects located at different distances into focus by changing the shape of the lens.
6 cells in the retina
fixed number of stimuli chosen with different intensities and presented at random
hole bounded by the iris
what does the complex cortical cell respond best to?
disorder where the eyeball is too short (specific)
stimulus adjusted until observer can barely detect a stimulus
the stimulus that a person is attending to at a given point in time
proportion of the stimulus for the observer to notice a change 50% of the time
transform one kind of energy into another
how many layers does the LGN have?
located in the occipital lobe. Also known as the primary visual receiving area
illusion made up of 9 black boxes with white lines between. Explained by lateral inhibition
specialized cell for achromatic vision and scotopic vision
pathway from the v1 to the parietal lobe. The Action pathway
area activated by bodies and parts of bodies
difference in spectral sensitivity is due to what?
range of visible light
2mm thick layer on the surface of the brain
2 muscles that control the pupil size
which LGN layers receive signals from the contralateral eye?
representation of a particular object in the environment by the firing of relatively small number of neurons
action potential with the absence of a stimuli
a neuron that transmits signals laterally in the retina. Cells synapse with bipolar cells and ganglion cells.
eyeball too long. Far objects don't focus
located in the fusiform gyrus on the underside of the brain. Face recognition
process where the lens varies its focus to bring the focus point forward so a near object falls on the retina
minimum amount of stimulus needed to perceive it
eye chart
distance between peaks of electromagnetic waves

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