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

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