Science Quiz / Sensation and Perception 1 - 4

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

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

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