class_2015_readinglist
... gyrus in 12 of the 15 subjects tested that was significantly more active when the subjects viewed faces than when they viewed assorted common objects. This face activation was used to define a specific region of interest individually for each subject, within which several new tests of face specifici ...
... gyrus in 12 of the 15 subjects tested that was significantly more active when the subjects viewed faces than when they viewed assorted common objects. This face activation was used to define a specific region of interest individually for each subject, within which several new tests of face specifici ...
From visual field to V1
... They receive inputs from P type RGC cells. • Magnocellular layers (motion) -- large cells, color blind, low spatial resolution (large RF), high temporal resolution (good for processing motion stimuli). They receive inputs from M type RGC cells. ...
... They receive inputs from P type RGC cells. • Magnocellular layers (motion) -- large cells, color blind, low spatial resolution (large RF), high temporal resolution (good for processing motion stimuli). They receive inputs from M type RGC cells. ...
Slide 1 - Elsevier Store
... taken with a special filter so that blood vessels stand out. (C) Ocular dominance map. Images of the brain during right-eyes timulation were subtracted digitally from images taken during left-eye stimulation. (D) Orientation map. Images of the brain were taken during stimulation at 12 different angl ...
... taken with a special filter so that blood vessels stand out. (C) Ocular dominance map. Images of the brain during right-eyes timulation were subtracted digitally from images taken during left-eye stimulation. (D) Orientation map. Images of the brain were taken during stimulation at 12 different angl ...
Coming to Attention
... They used a phenomenon called attention blink. In the experiment they once again displayed a series of letters to subjects and observed them with fMRI. This time, however, only a single green letter appeared among rapidly changing black letters, and the subject had to tell at the end of the test wh ...
... They used a phenomenon called attention blink. In the experiment they once again displayed a series of letters to subjects and observed them with fMRI. This time, however, only a single green letter appeared among rapidly changing black letters, and the subject had to tell at the end of the test wh ...
Ch 8 (Student MCQs etc)
... presentation of a vertical stimulus, the distribution of active channels is symmetrical about zero, so the perceived orientation corresponds to the actual stimulus orientation – i.e. vertical (panel B, figure 8.3). A stimulus that falls between the optimal values of two channels is also seen veridic ...
... presentation of a vertical stimulus, the distribution of active channels is symmetrical about zero, so the perceived orientation corresponds to the actual stimulus orientation – i.e. vertical (panel B, figure 8.3). A stimulus that falls between the optimal values of two channels is also seen veridic ...
Coming to Attention How the brain decides what to focus conscious
... regions' importance in controlling attention for a long time. The researchers were surprised, however, when they found a difference in the system, which is normally involved in processing emotional reactions. The state of our emotional system probably influences the control of attention and which se ...
... regions' importance in controlling attention for a long time. The researchers were surprised, however, when they found a difference in the system, which is normally involved in processing emotional reactions. The state of our emotional system probably influences the control of attention and which se ...
Brain Areas and Topography
... vaguely in the vicinity (+/- ~3 cm) of where I think it ought to be that lights up for something I think it ought to light up for • Neuroanatomist’s definition of an area: A circumscribed region of the cerebral cortex in which neurons together serve a specific function, receive connections from the ...
... vaguely in the vicinity (+/- ~3 cm) of where I think it ought to be that lights up for something I think it ought to light up for • Neuroanatomist’s definition of an area: A circumscribed region of the cerebral cortex in which neurons together serve a specific function, receive connections from the ...
Now you see it: frontal eye field responses to invisible targets
... seeing it, whereas on others they will swear it was not shown. The authors adjusted the SOA so that when the target was actually present, the monkeys only made saccades on about half the trials. The beauty of this approach is that an identical visual stimulus can be examined under conditions in whic ...
... seeing it, whereas on others they will swear it was not shown. The authors adjusted the SOA so that when the target was actually present, the monkeys only made saccades on about half the trials. The beauty of this approach is that an identical visual stimulus can be examined under conditions in whic ...
PSy420: Sensation and Perception (Dr. Hajnal) March 22, 2010
... The fact that faces are more difficult than many other types of objects to recognize when viewed upside-down is taken by many researchers to indicate that a) faces are recognized via structural descriptions. b) it is more difficult to segment faces from their backgrounds than other types of objects. ...
... The fact that faces are more difficult than many other types of objects to recognize when viewed upside-down is taken by many researchers to indicate that a) faces are recognized via structural descriptions. b) it is more difficult to segment faces from their backgrounds than other types of objects. ...
Sample Take-home Final Exam
... systems we've studied. What is cortical magnification? Describe 3 examples from 3 different sensory systems, and be sure to describe what is being magnified. ...
... systems we've studied. What is cortical magnification? Describe 3 examples from 3 different sensory systems, and be sure to describe what is being magnified. ...
Top-down influence in early visual processing: a Bayesian perspective
... scenes. These features include location, line orientation, stereo disparity, movement direction, color and spatial frequency [1,2]. It is also known that V1 neurons are also influenced by the surrounding context of the stimuli [3– 6]. The interpretations of the contextual modulations in these studie ...
... scenes. These features include location, line orientation, stereo disparity, movement direction, color and spatial frequency [1,2]. It is also known that V1 neurons are also influenced by the surrounding context of the stimuli [3– 6]. The interpretations of the contextual modulations in these studie ...
179 - Edmund Rolls
... invariant responses via experience of the real world, with its inherent spatio-temporal coiist8raints. We show that the model can learn to produce translation-invariant responses. ...
... invariant responses via experience of the real world, with its inherent spatio-temporal coiist8raints. We show that the model can learn to produce translation-invariant responses. ...
Eagleman Ch 5. Vision
... The dorsal stream projects from the rods to V1 to the parietal lobe. It processes information about where an object is. In motion blindness, an individual is unable to detect motion, although they can identify the object. ...
... The dorsal stream projects from the rods to V1 to the parietal lobe. It processes information about where an object is. In motion blindness, an individual is unable to detect motion, although they can identify the object. ...
Slide - Reza Shadmehr
... Visual objects to the right of fixation are processed predominately by the left visual cortex. However, because of the corpus callosum, this information is shared with the contralateral cerebral hemisphere. The corticospinal tract brings the output of the premotor cortex, primary motor cortex, and t ...
... Visual objects to the right of fixation are processed predominately by the left visual cortex. However, because of the corpus callosum, this information is shared with the contralateral cerebral hemisphere. The corticospinal tract brings the output of the premotor cortex, primary motor cortex, and t ...
The Eye: III. Central Neurophysiology of Vision
... increases, the pupils constrict. ► Functions to help the eye adapt extremely rapidly to changing light conditions. ► Light excites fibers going to pretectal nuclei. ► From pretectal nuclei fibers pass to EdingerWestphal nucleus and back through parasympathetic nerves to constrict iris sphincter. ...
... increases, the pupils constrict. ► Functions to help the eye adapt extremely rapidly to changing light conditions. ► Light excites fibers going to pretectal nuclei. ► From pretectal nuclei fibers pass to EdingerWestphal nucleus and back through parasympathetic nerves to constrict iris sphincter. ...
P312Ch04B_Cortex
... These cells respond to moving lines of a specific length (hence the term, end-stopped). Some also respond to moving corners or angles. Play VL 4.2 “Visual Cortex of the cat” here – about 20 min. The Visual Cortex - 8 ...
... These cells respond to moving lines of a specific length (hence the term, end-stopped). Some also respond to moving corners or angles. Play VL 4.2 “Visual Cortex of the cat” here – about 20 min. The Visual Cortex - 8 ...
Visual Coding and the Retinal Receptors
... • The receptive field refers to the part of the visual field that either excites or inhibits a cell in the visual system of the brain. • For a receptor, the receptive field is the point in space from which light strikes it. • For other visual cells, receptive fields are derived from the visual field ...
... • The receptive field refers to the part of the visual field that either excites or inhibits a cell in the visual system of the brain. • For a receptor, the receptive field is the point in space from which light strikes it. • For other visual cells, receptive fields are derived from the visual field ...
Document
... If we move our electrode around the module, we will find that these two characteristics— orientation sensitivity and ocular dominance—vary systematically and are arranged at right angles to each other. (See Figure 6.29.) ...
... If we move our electrode around the module, we will find that these two characteristics— orientation sensitivity and ocular dominance—vary systematically and are arranged at right angles to each other. (See Figure 6.29.) ...
Lecture 13A
... processing a few select signals at the expense of others… consciousness evolved gradually over the past half billion years and is present in a range of vertebrate species” “Even before the evolution of a central brain, nervous systems took advantage of a simple computing trick: competition. Neurons ...
... processing a few select signals at the expense of others… consciousness evolved gradually over the past half billion years and is present in a range of vertebrate species” “Even before the evolution of a central brain, nervous systems took advantage of a simple computing trick: competition. Neurons ...
vikram_slides1
... PT does not vary much with stimulus duration (except cyan in 2b) X0 is consistently affected. Smaller stimuli duration causes freq to be perceived lower by 2.3-4.3 Hz. Longer stimuli duration causes freq to be perceived higher by 0.6-2.7 Hz. ...
... PT does not vary much with stimulus duration (except cyan in 2b) X0 is consistently affected. Smaller stimuli duration causes freq to be perceived lower by 2.3-4.3 Hz. Longer stimuli duration causes freq to be perceived higher by 0.6-2.7 Hz. ...
Lecture 9
... A) Retina - > dorsal lateral geniculate (DLG) -> striate cortex B) Retina -> striate cortex -> extrastriate cortex -> inferior temporal cortex C) DLG -> retina -> striate cortex -> primary visual cortex D) Retina -> DLG -> inferior temporal cortex -> amygdala E) DLG-> frontal cortex -> amygdala -> e ...
... A) Retina - > dorsal lateral geniculate (DLG) -> striate cortex B) Retina -> striate cortex -> extrastriate cortex -> inferior temporal cortex C) DLG -> retina -> striate cortex -> primary visual cortex D) Retina -> DLG -> inferior temporal cortex -> amygdala E) DLG-> frontal cortex -> amygdala -> e ...
