THE VISUAL SYSTEM PERIPHERAL MECHANISMS 1) Light enters
... b. Information goes to layer 4 of cx (monocular input), begins to mix as it projects to other layers (binocular input) c. Properties of receptive field change: from spot detector to bar/edge detector (then corner detector, finally complex celsl that rebuild image) d. Each column has preference for b ...
... b. Information goes to layer 4 of cx (monocular input), begins to mix as it projects to other layers (binocular input) c. Properties of receptive field change: from spot detector to bar/edge detector (then corner detector, finally complex celsl that rebuild image) d. Each column has preference for b ...
view - Scan. Vet. Press
... synaptic input from many neurons in the lateral geniculate nucleus. The neurons connected to a particular cortical cell have circular receptive fields that are linearly arranged and of the same type. This gives the cortical cell an oblong receptive field, with parallel regions where illumination eit ...
... synaptic input from many neurons in the lateral geniculate nucleus. The neurons connected to a particular cortical cell have circular receptive fields that are linearly arranged and of the same type. This gives the cortical cell an oblong receptive field, with parallel regions where illumination eit ...
Solution 1
... processing pathways allows for the information they transmit to interact if very specific ways, providing the basis for complex computations: information from one stream can be amplified while another is suppressed, or one might modulate the other, or they might be integrated into a new output strea ...
... processing pathways allows for the information they transmit to interact if very specific ways, providing the basis for complex computations: information from one stream can be amplified while another is suppressed, or one might modulate the other, or they might be integrated into a new output strea ...
Slide ()
... cells extend for many millimeters parallel to the cortical surface. Axon collaterals form connections with other pyramidal cells as well as with inhibitory interneurons. This arrangement enables neurons to integrate information over large parts of the visual field. An important characteristic of the ...
... cells extend for many millimeters parallel to the cortical surface. Axon collaterals form connections with other pyramidal cells as well as with inhibitory interneurons. This arrangement enables neurons to integrate information over large parts of the visual field. An important characteristic of the ...
Primary visual cortex
... lateral geniculate nucleus neurons. For this reason, the primary visual cortex is also referred to as the striate cortex. ...
... lateral geniculate nucleus neurons. For this reason, the primary visual cortex is also referred to as the striate cortex. ...
Exam 2-SG suggested answers (2010)
... C. Visual information from the two eyes is kept separate up to the visual cortex, i.e. there are no binocular neurons below the level of the cortex, while auditory pathways from from the two ears are extensively crossed, so cells at all levels above the cochlear nuclei are binaural, i.e. they receiv ...
... C. Visual information from the two eyes is kept separate up to the visual cortex, i.e. there are no binocular neurons below the level of the cortex, while auditory pathways from from the two ears are extensively crossed, so cells at all levels above the cochlear nuclei are binaural, i.e. they receiv ...
Attending to Contrast
... stimulus was the same color or orientation as a previously presented stimulus. They found that paying attention to a particular stimulus location altered how neurons encoded visual information. When the difference between the second and first stimulus was small, the task was more difficult, and anim ...
... stimulus was the same color or orientation as a previously presented stimulus. They found that paying attention to a particular stimulus location altered how neurons encoded visual information. When the difference between the second and first stimulus was small, the task was more difficult, and anim ...
Computational vision --- a window to our brain
... A region can be characterized by its average luminance, regularity, smoothness, and many other measures. ...
... A region can be characterized by its average luminance, regularity, smoothness, and many other measures. ...
Computational vision --- a window to our brain
... A region can be characterized by its average luminance, regularity, smoothness, and many other measures. ...
... A region can be characterized by its average luminance, regularity, smoothness, and many other measures. ...
Lecture 2 - Computer Science
... •The light hits surfaces and interacts with them, with some being reflected, some absorbed and some transmitted. •The reflected light may bounce off multiple surfaces before reaching the eye. •Some of the light rays will eventually reach the eye and be focused on the retina. •We will diagram this in ...
... •The light hits surfaces and interacts with them, with some being reflected, some absorbed and some transmitted. •The reflected light may bounce off multiple surfaces before reaching the eye. •Some of the light rays will eventually reach the eye and be focused on the retina. •We will diagram this in ...
A1982ND73700001
... [Dept. Clinical Electrophysiology, Inst. Experimental Medicine of the Slovak Academy of Sciences, Bratislava, Czechoslovakia] The visual evoked potential is a very small bioelectric potential complex which can be registered, by means of sophisticated methods, on the human scalp as a response of the ...
... [Dept. Clinical Electrophysiology, Inst. Experimental Medicine of the Slovak Academy of Sciences, Bratislava, Czechoslovakia] The visual evoked potential is a very small bioelectric potential complex which can be registered, by means of sophisticated methods, on the human scalp as a response of the ...
Chapter 6: Summary and Discussion
... adequate decisions. Our view shares common features with neurally inspired models of decision making (Stanford et al 2010; Carpenter & Anderson 2009; Beck et al 2008). Chapter 5 investigates learning in area V1 using a similar paradigm to that in the previous chapter, but this time with a 500 ms del ...
... adequate decisions. Our view shares common features with neurally inspired models of decision making (Stanford et al 2010; Carpenter & Anderson 2009; Beck et al 2008). Chapter 5 investigates learning in area V1 using a similar paradigm to that in the previous chapter, but this time with a 500 ms del ...
Slide ()
... to the optic chiasm, where fibers from the nasal hemiretina cross to the opposite hemisphere. Fibers from the temporal hemiretina stay on the same side, joining the fibers from the nasal hemiretina of the contralateral eye to form the optic tract. The optic tract carries information from the opposit ...
... to the optic chiasm, where fibers from the nasal hemiretina cross to the opposite hemisphere. Fibers from the temporal hemiretina stay on the same side, joining the fibers from the nasal hemiretina of the contralateral eye to form the optic tract. The optic tract carries information from the opposit ...
Slide ()
... to the optic chiasm, where fibers from the nasal hemiretina cross to the opposite hemisphere. Fibers from the temporal hemiretina stay on the same side, joining the fibers from the nasal hemiretina of the contralateral eye to form the optic tract. The optic tract carries information from the opposit ...
... to the optic chiasm, where fibers from the nasal hemiretina cross to the opposite hemisphere. Fibers from the temporal hemiretina stay on the same side, joining the fibers from the nasal hemiretina of the contralateral eye to form the optic tract. The optic tract carries information from the opposit ...
Lecture 5 - TeachLine
... to study of computation; (from input/output can deduce computation). Study of RF linearity/nonlinearity • essential for deriving mechanisms. Division into neuron classes basic for • visual system, differentiating processing pathways, using one, the other, or a combination of streams. Analysis of res ...
... to study of computation; (from input/output can deduce computation). Study of RF linearity/nonlinearity • essential for deriving mechanisms. Division into neuron classes basic for • visual system, differentiating processing pathways, using one, the other, or a combination of streams. Analysis of res ...
LSU Seminar Neuroscience Center of Excellence
... Arianna Maffei, Ph.D. Research Associate Brandeis University, Waltham, MA The fine-tuning of circuits in sensory cortex requires sensory experience during an early critical period. Visual deprivation (VD) during the critical period has atastrophic effects on visual function, including loss of visual ...
... Arianna Maffei, Ph.D. Research Associate Brandeis University, Waltham, MA The fine-tuning of circuits in sensory cortex requires sensory experience during an early critical period. Visual deprivation (VD) during the critical period has atastrophic effects on visual function, including loss of visual ...
Difficulty (part of the hypothesis)
... IPS is involved in bottom-up saliency computation, and FEF is involved in forming task set (template). ...
... IPS is involved in bottom-up saliency computation, and FEF is involved in forming task set (template). ...
Visual Field and the Human Visual System
... PET Activations of Word vs. Nonword Stimuli Brain shows much greater activation as subjects look at visual words (2nd row) than when they view a static fixation point (top row). ...
... PET Activations of Word vs. Nonword Stimuli Brain shows much greater activation as subjects look at visual words (2nd row) than when they view a static fixation point (top row). ...
Chapter 7 part two
... Attending to a color will bring up all stimuli that have that color. Winner determined both by bottom up effects (intensity and novelty) and top down activation from higher areas. ...
... Attending to a color will bring up all stimuli that have that color. Winner determined both by bottom up effects (intensity and novelty) and top down activation from higher areas. ...
Blue= rods Green = Cones
... • There is a distorted map of our visual world at several different places in the brain • Each place in our visual field is represented by the activity of particular neurons in several different parts of our visual system • This map of the retina is represented and maintained in the LGN, primary vis ...
... • There is a distorted map of our visual world at several different places in the brain • Each place in our visual field is represented by the activity of particular neurons in several different parts of our visual system • This map of the retina is represented and maintained in the LGN, primary vis ...
Automatic unconscious knowledge
... Automatic unconscious knowledge - Tsushima, Sasaki, & Watanabe (2006). Science, 314. ...
... Automatic unconscious knowledge - Tsushima, Sasaki, & Watanabe (2006). Science, 314. ...