Modulation of early cortical processing during divided attention to
... Received 16 December 2013, revised 22 January 2014, accepted 24 January 2014 ...
... Received 16 December 2013, revised 22 January 2014, accepted 24 January 2014 ...
Automatic and Voluntary Shifts of Attention in a Dynamic Neural... the Dimensional Change Card Sort Task
... DCCS with low-saliency and the shape features with highsaliency (see Figure 5). Using a more complex task design in order to isolate automatic and voluntary attentional processes, any influence of spatial information was eliminated by randomizing the location (left/right) of the target cards trial b ...
... DCCS with low-saliency and the shape features with highsaliency (see Figure 5). Using a more complex task design in order to isolate automatic and voluntary attentional processes, any influence of spatial information was eliminated by randomizing the location (left/right) of the target cards trial b ...
Attention maps in the brain - Site BU
... Over 20 distinct cerebral cortical areas contain spatial map representations of the visual field. These retinotopic, or visuotopic, cortical areas occur not only in the occipital lobe but also in the parietal, temporal, and frontal lobes. The cognitive influences of visuospatial attention operate vi ...
... Over 20 distinct cerebral cortical areas contain spatial map representations of the visual field. These retinotopic, or visuotopic, cortical areas occur not only in the occipital lobe but also in the parietal, temporal, and frontal lobes. The cognitive influences of visuospatial attention operate vi ...
Chapter 21: Attention - Biology Courses Server
... • More mental energy to one location – Enhanced sensitivity & reaction time ...
... • More mental energy to one location – Enhanced sensitivity & reaction time ...
Selective visual attention and perceptual coherence
... features or locations, combine with stimulus-driven factors to form a ‘master’ attention map. Thus, attentional priority is a convolution of physical salience (stimulusdriven contributions), and the degree to which either salient or non-salient features match the current goalstate of the observer (v ...
... features or locations, combine with stimulus-driven factors to form a ‘master’ attention map. Thus, attentional priority is a convolution of physical salience (stimulusdriven contributions), and the degree to which either salient or non-salient features match the current goalstate of the observer (v ...
Superior Colliculus and Visual Spatial Attention
... that regulate spatial attention and saccade selection (Fecteau & Munoz 2006). Although SC activity may have been restricted to spatial attention associated with eye movements, other studies have shown that the SC may play a role in covert attention. In one study, animals discriminated the orientatio ...
... that regulate spatial attention and saccade selection (Fecteau & Munoz 2006). Although SC activity may have been restricted to spatial attention associated with eye movements, other studies have shown that the SC may play a role in covert attention. In one study, animals discriminated the orientatio ...
What is spatial memory? Short-term spatial memory Spatial working
... cognitive process that enables a person to remember different locations as well as spatial relations between objects. This allows one to remember where an object is in relation to another object, for instance, allowing someone to navigate through a familiar city. Spatial memories are said to form af ...
... cognitive process that enables a person to remember different locations as well as spatial relations between objects. This allows one to remember where an object is in relation to another object, for instance, allowing someone to navigate through a familiar city. Spatial memories are said to form af ...
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. ...
Eagleman Ch 8. Attention and Consciousness
... Hemineglect: A Disorder of Attention and Awareness The attentional deficit covers multiple sensory modalities Pointing out the deficits to the patient does not help resolve the problem for more than a brief time. The unattended stimuli do activate the primary sensory cortices, but the activatio ...
... Hemineglect: A Disorder of Attention and Awareness The attentional deficit covers multiple sensory modalities Pointing out the deficits to the patient does not help resolve the problem for more than a brief time. The unattended stimuli do activate the primary sensory cortices, but the activatio ...
Attention
... tasks. Discuss how attention can alter the speed of visual processing, assuming attention to visual objects does not have a direct effect on visual transduction or motor coding. 7. Explain the concept of shifting attention. Discuss the effects on the brain of shifting attention from one task to ano ...
... tasks. Discuss how attention can alter the speed of visual processing, assuming attention to visual objects does not have a direct effect on visual transduction or motor coding. 7. Explain the concept of shifting attention. Discuss the effects on the brain of shifting attention from one task to ano ...
Background Presentation
... Visual Attention • Attention is the ability to select objects of interest from the surrounding environment • A reliable measure of attention is eye movement during object (target) selection • Early studies show that there are specific brain regions that are involved in the process of target selecti ...
... Visual Attention • Attention is the ability to select objects of interest from the surrounding environment • A reliable measure of attention is eye movement during object (target) selection • Early studies show that there are specific brain regions that are involved in the process of target selecti ...
The Physiology of the Senses Lecture 5
... processing such as face recognition and geometry. It excels in tasks that are spatial or intuitive, (C resembles O as I resembles L), and music. Although one side may dominate for a particular function, recent evidence suggests that the other cortex is also activated, although less, in the same func ...
... processing such as face recognition and geometry. It excels in tasks that are spatial or intuitive, (C resembles O as I resembles L), and music. Although one side may dominate for a particular function, recent evidence suggests that the other cortex is also activated, although less, in the same func ...
2320lecture22
... Disorders of Orienting • Lesions to parietal cortex can produce some strange behavioural consequences – patients fail to notice events on the contralesional side – Patients behave as if they are blind in the contralesional hemifield but they are not blind ...
... Disorders of Orienting • Lesions to parietal cortex can produce some strange behavioural consequences – patients fail to notice events on the contralesional side – Patients behave as if they are blind in the contralesional hemifield but they are not blind ...
Neural coding of behavioral relevance in parietal cortex
... dots, when they were directed in advance to attend to the appropriate or inappropriate patch. Withdrawing attention from the stimulus decreased the animals’ ability to detect the change in motion coherence, and also reduced neuronal responses in MT and VIP. Interestingly, the changes in neuronal res ...
... dots, when they were directed in advance to attend to the appropriate or inappropriate patch. Withdrawing attention from the stimulus decreased the animals’ ability to detect the change in motion coherence, and also reduced neuronal responses in MT and VIP. Interestingly, the changes in neuronal res ...
2320Lecture20
... • Posner and colleagues – Use cue-target paradigm to investigate attentional abilities of parietal lesion patients – Prediction: stimuli in ipsilesional field always faster than stimuli in contralesional field and cues don’t matter ...
... • Posner and colleagues – Use cue-target paradigm to investigate attentional abilities of parietal lesion patients – Prediction: stimuli in ipsilesional field always faster than stimuli in contralesional field and cues don’t matter ...
Visual and oculomotor selection: links, causes and
... Figure 2. Microstimulation of the SC. Two recent studies examined the effect of subthreshold SC microstimulation (left) on covert spatial attention. (a) One study used a change-blindness task in which monkeys were trained to detect peripheral changes in a visual display. During each trial the animal ...
... Figure 2. Microstimulation of the SC. Two recent studies examined the effect of subthreshold SC microstimulation (left) on covert spatial attention. (a) One study used a change-blindness task in which monkeys were trained to detect peripheral changes in a visual display. During each trial the animal ...
21 June 2001
... is in principle comparable and functionally homologous in both species, directly coding space for action. Methods Clinical investigation Patients were classified as having spatial neglect when they showed the typical clinical behaviour such as spontaneous deviation of the head and eyes toward the ip ...
... is in principle comparable and functionally homologous in both species, directly coding space for action. Methods Clinical investigation Patients were classified as having spatial neglect when they showed the typical clinical behaviour such as spontaneous deviation of the head and eyes toward the ip ...
The neural mechanisms of top- down attentional control
... of hemodynamic activity15 correlated with distinct aspects of complex-task performance. Here we used event-related fMRI methods to determine which brain regions were involved in attentional-control processes and to distinguish these from areas involved in subsequent selective processing of target st ...
... of hemodynamic activity15 correlated with distinct aspects of complex-task performance. Here we used event-related fMRI methods to determine which brain regions were involved in attentional-control processes and to distinguish these from areas involved in subsequent selective processing of target st ...
Localization of Cognitive Operations
... used cues to direct attention covertly to areas of the visual field without eye movements (15). Attention is measured by changes in the efficiency of processing targets at the cued location in comparison with other uncued locations in the visual field. These studies have found systematic deficits in ...
... used cues to direct attention covertly to areas of the visual field without eye movements (15). Attention is measured by changes in the efficiency of processing targets at the cued location in comparison with other uncued locations in the visual field. These studies have found systematic deficits in ...
E(R) - Consciousness Online
... Limited explanatory power In natural behavior, attention and eye movements are not directly rewarded Attentional decisions are endogenous, even when they support behavioral goals. LIP/FEF neurons encode covertly attended objects. ...
... Limited explanatory power In natural behavior, attention and eye movements are not directly rewarded Attentional decisions are endogenous, even when they support behavioral goals. LIP/FEF neurons encode covertly attended objects. ...
Slide 1
... May be that attentional mechanisms can modulate the responses of MT neurons more effectively with reference to a combination of direction and space (Treue and Maunsell) than to space alone (this study) • Feature-based attentional mechanisms (direction of motion as feature) may contribute to the a ...
... May be that attentional mechanisms can modulate the responses of MT neurons more effectively with reference to a combination of direction and space (Treue and Maunsell) than to space alone (this study) • Feature-based attentional mechanisms (direction of motion as feature) may contribute to the a ...
The Integrative Role of Posterior Parietal Cortex and related Clinical S
... We will present to follow some disturbs related to the deficit in the spatial cognition or on the use of that as an aid to some other superior function (language, spatial orientation, attention orientation, etc.). The accurate correlation between each one of those syndromes and the subjacent anatomi ...
... We will present to follow some disturbs related to the deficit in the spatial cognition or on the use of that as an aid to some other superior function (language, spatial orientation, attention orientation, etc.). The accurate correlation between each one of those syndromes and the subjacent anatomi ...
11 Attention
... Concentrate on one object in visual field B. Selectively attend to information (while ignoring other information) C. Preferential processing of sensory information Attention-deficit hyperactivity disorder Demonstrates critical nature of intact attentional mechanisms Brain imaging studies Show that c ...
... Concentrate on one object in visual field B. Selectively attend to information (while ignoring other information) C. Preferential processing of sensory information Attention-deficit hyperactivity disorder Demonstrates critical nature of intact attentional mechanisms Brain imaging studies Show that c ...
1. What different types of attention exist? Name and describe at least
... 1. What different types of attention exist? Name and describe at least four types of attention. Exogenous or bottom-up attention: type of attention associated with sensory stimuli “popping out” of the background withouth cognitive input, e.g., a flash of light in the darkness, a loud sound in quietn ...
... 1. What different types of attention exist? Name and describe at least four types of attention. Exogenous or bottom-up attention: type of attention associated with sensory stimuli “popping out” of the background withouth cognitive input, e.g., a flash of light in the darkness, a loud sound in quietn ...
Are We Paying Attention Yet?
... Attention and eye movements are tightly related During saccade preparation, oculomotor system controls location selection even if attention is directed elsewhere Direction of attention is dissociable from eye position during fixations Findings are do not rule out interdependence or identity hypothes ...
... Attention and eye movements are tightly related During saccade preparation, oculomotor system controls location selection even if attention is directed elsewhere Direction of attention is dissociable from eye position during fixations Findings are do not rule out interdependence or identity hypothes ...