Sensation and Perception 1 - 4

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

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

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