phys chapter 51 [3-20
... o Voluntary fixation movements controlled by cortical field located bilaterally in premotor cortical regions of frontal lobes; bilateral dysfunction or destruction makes difficult for person to unlock eyes from one point of fixation and move them to another point; usually necessary to blink or put h ...
... o Voluntary fixation movements controlled by cortical field located bilaterally in premotor cortical regions of frontal lobes; bilateral dysfunction or destruction makes difficult for person to unlock eyes from one point of fixation and move them to another point; usually necessary to blink or put h ...
Attention and Consciousness
... When rhythm was regular it was quickly learned and automated with no activation of executive control and dorsolateral regions. When rhythm was distorted randomly within 3% a little more brain activities were observed, and when it was distorted by 20% a lot. ...
... When rhythm was regular it was quickly learned and automated with no activation of executive control and dorsolateral regions. When rhythm was distorted randomly within 3% a little more brain activities were observed, and when it was distorted by 20% a lot. ...
Serre-Poggio_ACM_R2_finalSubmission
... the specificity-invariance trade-off. On the one hand, classification problem (red) line: One category is represented with “+” and the other with recognition must be able to finely discriminate “–”. Insets show 2D transformations (translation and scales) applied to examples from the two classes. Ill ...
... the specificity-invariance trade-off. On the one hand, classification problem (red) line: One category is represented with “+” and the other with recognition must be able to finely discriminate “–”. Insets show 2D transformations (translation and scales) applied to examples from the two classes. Ill ...
Decoding the Contents of Visual Short
... 2 d before the scanning session. In the training runs, memory sample sets procedure was chosen to disentangle the different contributions of mere were different from those used in the scanner to avoid long-term consolstimulus presentation from processes specific to short-term memory idation of the m ...
... 2 d before the scanning session. In the training runs, memory sample sets procedure was chosen to disentangle the different contributions of mere were different from those used in the scanner to avoid long-term consolstimulus presentation from processes specific to short-term memory idation of the m ...
Frontal Eye Field Neurons Reflect Covert, Serial Shifts of Attention
... each distractor differed independently from the target in either color or orientation. Because the target matched some of the distractors in each dimension, it was not the most salient stimulus in the array and had to be sought using only its remembered appearance. As we were interested in covert se ...
... each distractor differed independently from the target in either color or orientation. Because the target matched some of the distractors in each dimension, it was not the most salient stimulus in the array and had to be sought using only its remembered appearance. As we were interested in covert se ...
2320Lecture20
... – changes accompanied by full-field transients are hard to detect • e.g. change blindness • orienting mechanism is blinded by the transient ...
... – changes accompanied by full-field transients are hard to detect • e.g. change blindness • orienting mechanism is blinded by the transient ...
Article Page 08.27.20+
... from light into understandable and recognizable images. They are: luminance, color, texture, motion, and binocular disparity. These stimulus properties define the type of information carried throughout the visual pathways. Discreet functional units, and in some cases structural units, have been iden ...
... from light into understandable and recognizable images. They are: luminance, color, texture, motion, and binocular disparity. These stimulus properties define the type of information carried throughout the visual pathways. Discreet functional units, and in some cases structural units, have been iden ...
The Neural Fate of Consciously Perceived and Missed Events in the
... on neural processing of T1, namely, the attentional limitations that cause the AB. The present study now examines the effects of divided attention on T2, both when it is consciously perceived and when it is missed. Few imaging studies have investigated the neural fate of consciously perceived and mi ...
... on neural processing of T1, namely, the attentional limitations that cause the AB. The present study now examines the effects of divided attention on T2, both when it is consciously perceived and when it is missed. Few imaging studies have investigated the neural fate of consciously perceived and mi ...
Optometric Management Of A Patient With Parietal Lobe Injury
... the idea of a complex meaningful motor response to sensory and spatial stimuli.16 This is distinct from the frontal lobes, that are more involved in the actual execution of a given task.18 The non-dominant lobe is thought to be more responsible for visual-spatial tasks.16 Typically, those with damag ...
... the idea of a complex meaningful motor response to sensory and spatial stimuli.16 This is distinct from the frontal lobes, that are more involved in the actual execution of a given task.18 The non-dominant lobe is thought to be more responsible for visual-spatial tasks.16 Typically, those with damag ...
Binding Mechanisms in Visual Perception
... neurons activate different groups of complex neurons across different cortical areas. Therefore, the architecture of the visual system is rather a multiple to multiple neural network than a multiple to one converging pyramid. Once activated by their preferred stimuli, neuron populations that across ...
... neurons activate different groups of complex neurons across different cortical areas. Therefore, the architecture of the visual system is rather a multiple to multiple neural network than a multiple to one converging pyramid. Once activated by their preferred stimuli, neuron populations that across ...
Visual and oculomotor selection: links, causes and
... additional ‘distracter’ stimuli outside the V4 neuron receptive field, as has been observed during attention. These findings suggest that the gain of visual responses in extrastriate cortex is directly modulated by the same activity that elicits a saccade to a particular location, and they suggest a ...
... additional ‘distracter’ stimuli outside the V4 neuron receptive field, as has been observed during attention. These findings suggest that the gain of visual responses in extrastriate cortex is directly modulated by the same activity that elicits a saccade to a particular location, and they suggest a ...
reviews - Center for Complex Systems and Brain Sciences
... into account. An example of a mixed bottom-up and top-down model in which attention enhances spatial resolution47 is discussed later. Computational models may or may not include explicit details about early visual feature extraction. Models that do not are restricted to images for which the response ...
... into account. An example of a mixed bottom-up and top-down model in which attention enhances spatial resolution47 is discussed later. Computational models may or may not include explicit details about early visual feature extraction. Models that do not are restricted to images for which the response ...
The Physiology of the Senses Lecture 6 Visually Guided Actions
... foveal location and B to a less peripheral location. In V1 this is where B would have been coded were it visible. ...
... foveal location and B to a less peripheral location. In V1 this is where B would have been coded were it visible. ...
lgn - cinpla
... what role does this relay center play in the visual pathway? The lateral geniculate nucleus (LGN) is placed in a prominent position in the early visual pathway. It sits between the retina and the visual cortex, acting as a relay between the two. Inserting a microelectrode into the LGN reveals that t ...
... what role does this relay center play in the visual pathway? The lateral geniculate nucleus (LGN) is placed in a prominent position in the early visual pathway. It sits between the retina and the visual cortex, acting as a relay between the two. Inserting a microelectrode into the LGN reveals that t ...
Dear Notetaker:
... o This is referred to as Optic Ataxia o Patient could do the task with their eyes closed o Shows that it was not a problem with motor neurons o Able to close eyes and touch ears when instructed o Can’t put together visual guidance and motor activity Simultagnosia o Inability to perceive things sim ...
... o This is referred to as Optic Ataxia o Patient could do the task with their eyes closed o Shows that it was not a problem with motor neurons o Able to close eyes and touch ears when instructed o Can’t put together visual guidance and motor activity Simultagnosia o Inability to perceive things sim ...
The neural mechanisms of top- down attentional control
... role of inferior parietal cortex based L SPL on activity averaged across blocks of R SPL trials8,11,24,25, as well as work in animals26, but provides the first direct L postCG L postCG L preCG L preCG evidence that these regions of the inferior parietal lobule are specifiL SPL L SPL cally linked to ...
... role of inferior parietal cortex based L SPL on activity averaged across blocks of R SPL trials8,11,24,25, as well as work in animals26, but provides the first direct L postCG L postCG L preCG L preCG evidence that these regions of the inferior parietal lobule are specifiL SPL L SPL cally linked to ...
PSYC550 Sense or Senseless
... Analysis of Visual Information: Role of the Visual Association Cortex ...
... Analysis of Visual Information: Role of the Visual Association Cortex ...
Sensory modalities are not separate modalities: plasticity and
... animals interpreted the activation of the rewired auditory cortex as visual sensation, indicating a functional relevance of the rewiring. There is also evidence for a cross-modal postnatal perceptual enhancement by prenatal sensory stimulation. When bobwhite quail chicks were prenatally exposed to a ...
... animals interpreted the activation of the rewired auditory cortex as visual sensation, indicating a functional relevance of the rewiring. There is also evidence for a cross-modal postnatal perceptual enhancement by prenatal sensory stimulation. When bobwhite quail chicks were prenatally exposed to a ...
Neural coding of behavioral relevance in parietal cortex
... study [36]. This study suggests that patients with parietal lesions that spare the MT/MST complex are severely impaired in attentional tracking and other high-level motion tasks, but are not deficient in low-level motion tasks [36]. fMRI has also been used to address the exact role of the parietal ...
... study [36]. This study suggests that patients with parietal lesions that spare the MT/MST complex are severely impaired in attentional tracking and other high-level motion tasks, but are not deficient in low-level motion tasks [36]. fMRI has also been used to address the exact role of the parietal ...
Sauve CVE 2015 - Calgary Vision Event
... optokinetic reflex (e.g. subject motionless, visual field moves.... nystagmus; e.g. watching scenery from car. Optokinetic reflex dominates eye stabilization in slow head movements (e.g. up to 1 Hz); VOR dominates as head acceleration becomes more rapid ( >1 Hz). post-rotatory nystagmus: vestibular ...
... optokinetic reflex (e.g. subject motionless, visual field moves.... nystagmus; e.g. watching scenery from car. Optokinetic reflex dominates eye stabilization in slow head movements (e.g. up to 1 Hz); VOR dominates as head acceleration becomes more rapid ( >1 Hz). post-rotatory nystagmus: vestibular ...
11 Attention
... Demonstrates critical nature of intact attentional mechanisms Brain imaging studies Show that cortical activity is altered by attention Psychology 355 ...
... Demonstrates critical nature of intact attentional mechanisms Brain imaging studies Show that cortical activity is altered by attention Psychology 355 ...
TalkHumaine_grandjean
... modulate attentional processes and could thus orient the ressources of organism (or ECAs …) on specific events or objects. ...
... modulate attentional processes and could thus orient the ressources of organism (or ECAs …) on specific events or objects. ...
Selective visual attention and perceptual coherence
... immediately begin to transform the representation of stimuli according to their salience (so that, for example, objects with high local contrast are more robustly represented than those with low contrast). This is only part of the story, however. Activity in almost every level of the visual system i ...
... immediately begin to transform the representation of stimuli according to their salience (so that, for example, objects with high local contrast are more robustly represented than those with low contrast). This is only part of the story, however. Activity in almost every level of the visual system i ...