(2010) Surround suppression sharpens the priority map in the lateral
... a brief white spot flashed for ⬍50 ms (2–3 video frames in 90% of trials; 1 video frame on the remaining trials) in the center of the RF. The duration of the distractor was independent of all other task parameters, including stimulus locations, timing, and reward size. The no-saccade control was ide ...
... a brief white spot flashed for ⬍50 ms (2–3 video frames in 90% of trials; 1 video frame on the remaining trials) in the center of the RF. The duration of the distractor was independent of all other task parameters, including stimulus locations, timing, and reward size. The no-saccade control was ide ...
do simultaneously presented visual and auditory
... attention. In two conditions, participants were presented with auditory and visual stimuli that conveyed the same information (consistent), but they were instructed to attend to either the auditory or the visual stimulus. In the other two conditions, the auditory and visual stimuli conveyed differen ...
... attention. In two conditions, participants were presented with auditory and visual stimuli that conveyed the same information (consistent), but they were instructed to attend to either the auditory or the visual stimulus. In the other two conditions, the auditory and visual stimuli conveyed differen ...
Link to fulltext - Ernst Strüngmann Institute
... thereby reducing OSSS. In Experiment 2, subjects performed a crowding task in which they reported the identity of a peripheral letter flanked by letters on either side. We measured the critical spacing between the targets and flanking letters that allowed reliable identification. Cholinergic enhance ...
... thereby reducing OSSS. In Experiment 2, subjects performed a crowding task in which they reported the identity of a peripheral letter flanked by letters on either side. We measured the critical spacing between the targets and flanking letters that allowed reliable identification. Cholinergic enhance ...
Visual Attention Modulates Insight Versus Analytic Solving of Verbal
... Furthermore, activity in this ACC area modulated by mood also seems to indicate whether people are in a mental state conducive to solving with insight. Prior to seeing each problem, participants show increased activity in the ACC before trials that they will eventually solve with insight (Kounios et ...
... Furthermore, activity in this ACC area modulated by mood also seems to indicate whether people are in a mental state conducive to solving with insight. Prior to seeing each problem, participants show increased activity in the ACC before trials that they will eventually solve with insight (Kounios et ...
Effect of Spatial Attention on the Responses of Area MT Neurons
... more competing motion stimuli that appear simultaneously within the cell’s receptive field, as in the study of Treue and Maunsell. To test this possibility, we recorded the responses of MT neurons while monkeys performed a spatial attention task. On each trial, two apertures of random-dot stimuli ap ...
... more competing motion stimuli that appear simultaneously within the cell’s receptive field, as in the study of Treue and Maunsell. To test this possibility, we recorded the responses of MT neurons while monkeys performed a spatial attention task. On each trial, two apertures of random-dot stimuli ap ...
Paying attention to consciousness - What is Neuro
... scious experience. The tactic of this paper is therefore initially to concentrate on attention and only afterwards explore how consciousness might arise from inside the resulting neural model of attention. We will be able to use the qualitative features of consciousness, mentioned under the first th ...
... scious experience. The tactic of this paper is therefore initially to concentrate on attention and only afterwards explore how consciousness might arise from inside the resulting neural model of attention. We will be able to use the qualitative features of consciousness, mentioned under the first th ...
Abstract of “Primate frontal eye fields mediate spatial attention in
... FEF is retinotopically organized and has a map of visual field eccentricity (Schall, 2009). Many functionally different types of neurons have been identified in FEF. Movement neurons begin to fire approximately 50ms before the initiation of a saccadic eye movement (Bruce and Goldberg, 1985; Thompson ...
... FEF is retinotopically organized and has a map of visual field eccentricity (Schall, 2009). Many functionally different types of neurons have been identified in FEF. Movement neurons begin to fire approximately 50ms before the initiation of a saccadic eye movement (Bruce and Goldberg, 1985; Thompson ...
Qualitative Spatial Reasoning: Framework and Frontiers
... (Forbus, Nielsen, & Faltings, 1987, 1991): There is no problem-independent, purely qualitative representation of space or shape. By “purely qualitative,” we mean to rule out representations whose parts contain enough detailed information to permit calculation or the operation of perceptual-like proc ...
... (Forbus, Nielsen, & Faltings, 1987, 1991): There is no problem-independent, purely qualitative representation of space or shape. By “purely qualitative,” we mean to rule out representations whose parts contain enough detailed information to permit calculation or the operation of perceptual-like proc ...
ATTENTIONAL MODULATION OF VISUAL PROCESSING John H
... field of a V4 neuron while the monkey attended away from the receptive field to detect a target and earn a juice reward. The stimulus appeared at one of three levels of luminance contrast, two of which (5%, bottom panel, and 10%, middle panel) were too faint to elicit a response. That is, they were ...
... field of a V4 neuron while the monkey attended away from the receptive field to detect a target and earn a juice reward. The stimulus appeared at one of three levels of luminance contrast, two of which (5%, bottom panel, and 10%, middle panel) were too faint to elicit a response. That is, they were ...
Topographic Maps in Human Frontal Cortex Revealed in Memory
... doi:10.1152/jn.00010.2007. We used fMRI at 3 Tesla and improved spatial resolution (2 ⫻ 2 ⫻ 2 mm3) to investigate topographic organization in human frontal cortex using memory-guided response tasks performed at 8 or 12 peripheral locations arranged clockwise around a central fixation point. The task ...
... doi:10.1152/jn.00010.2007. We used fMRI at 3 Tesla and improved spatial resolution (2 ⫻ 2 ⫻ 2 mm3) to investigate topographic organization in human frontal cortex using memory-guided response tasks performed at 8 or 12 peripheral locations arranged clockwise around a central fixation point. The task ...
Tuning Curve Shift by Attention Modulation in Cortical Neurons: a
... bell-shaped receptive field and its maximum response occurs when the stimulus is presented at x. Under attention, the receptive field might shift and/or change size. In order to assess the shift of the receptive field we typically use a measure based on the location of the maximum firing in the receptiv ...
... bell-shaped receptive field and its maximum response occurs when the stimulus is presented at x. Under attention, the receptive field might shift and/or change size. In order to assess the shift of the receptive field we typically use a measure based on the location of the maximum firing in the receptiv ...
The time course of selective visual attention: theory and experiments
... In the case of the visual system, only a small fraction of information received reaches a level of processing to be voluntarily reported or directly used to influence behaviour. The psychophysical work of Helmholtz (1867) has originated a commonly employed metaphor for focal attention in terms of a s ...
... In the case of the visual system, only a small fraction of information received reaches a level of processing to be voluntarily reported or directly used to influence behaviour. The psychophysical work of Helmholtz (1867) has originated a commonly employed metaphor for focal attention in terms of a s ...
The Effects of Short-term and Long-term Learning on the Responses
... Abstract ■ The lateral intraparietal area (LIP) is thought to play an ...
... Abstract ■ The lateral intraparietal area (LIP) is thought to play an ...
PDF
... The reports just described indicate that the amygdala encodes information about space and reward and that neural activity is correlated with spatial attention allocation to stimuli associated with reward. Of course, subjects often exhibit enhanced attention to stimuli threatening aversive events, a ...
... The reports just described indicate that the amygdala encodes information about space and reward and that neural activity is correlated with spatial attention allocation to stimuli associated with reward. Of course, subjects often exhibit enhanced attention to stimuli threatening aversive events, a ...
Extended PDF
... signals were presented para-foveally or peripherally for smalldisparity trials, they were presented in the periphery for largedisparity trials. Interaction between Spatial Disparity and Visual Reliability For completeness, we also observed an interaction between reliability and spatial disparity in ...
... signals were presented para-foveally or peripherally for smalldisparity trials, they were presented in the periphery for largedisparity trials. Interaction between Spatial Disparity and Visual Reliability For completeness, we also observed an interaction between reliability and spatial disparity in ...
chelazzi et al 2012 - Emergent Attention Lab
... Rewards, including monetary ones, have been often used as means to affect the motivational engagement of subjects taking part in behavioral experiments (Pessoa, 2009; Pessoa & Engelmann, 2010; Sarter, Gehring, & Kozak, 2006; Watanabe, 2007). Typically, subjects are informed prior to each trial that ...
... Rewards, including monetary ones, have been often used as means to affect the motivational engagement of subjects taking part in behavioral experiments (Pessoa, 2009; Pessoa & Engelmann, 2010; Sarter, Gehring, & Kozak, 2006; Watanabe, 2007). Typically, subjects are informed prior to each trial that ...
Attention induces synchronization-based response gain in steady
... attended and ignored stimuli simultaneously (thus controlling for influences on SSVEPs that were unrelated to attention), analyzing the scalp topography of attention effects (crucial for evaluating the attentional response and activity gain hypotheses) and examining the effects of attention on respo ...
... attended and ignored stimuli simultaneously (thus controlling for influences on SSVEPs that were unrelated to attention), analyzing the scalp topography of attention effects (crucial for evaluating the attentional response and activity gain hypotheses) and examining the effects of attention on respo ...
Modulation of Inhibition of Return by the Dopamine D2 Receptor
... dopamine (DA) in both involuntary attention and IOR. DA is involved in a variety of cognitive functions, and 3 lines of evidence suggest that it also modulates IOR. First, patients with Parkinson’s disease (PD), a disease characterized by reduced dopaminergic transmission in the striatum, have reduc ...
... dopamine (DA) in both involuntary attention and IOR. DA is involved in a variety of cognitive functions, and 3 lines of evidence suggest that it also modulates IOR. First, patients with Parkinson’s disease (PD), a disease characterized by reduced dopaminergic transmission in the striatum, have reduc ...
The role of neuronal synchronization in selective attention
... change had occurred. This finding suggests that the processing or the signalling of a sensory change is more efficient when it is handled by an area that is engaged in enhanced gamma-band synchronization [6]. Importantly, the influence of local synchronization of behavioural responses was spatiall ...
... change had occurred. This finding suggests that the processing or the signalling of a sensory change is more efficient when it is handled by an area that is engaged in enhanced gamma-band synchronization [6]. Importantly, the influence of local synchronization of behavioural responses was spatiall ...
Visual Cortex and Control Processes Stimuli in Opposite Visual
... occipital cortex. However, this result may have been a consequence of task demands because subjects were always instructed to report letters on one particular side first in the bilateral blocks, followed by the other side if possible. During unilateral blocks, subjects reported 88% of the letters co ...
... occipital cortex. However, this result may have been a consequence of task demands because subjects were always instructed to report letters on one particular side first in the bilateral blocks, followed by the other side if possible. During unilateral blocks, subjects reported 88% of the letters co ...
Symmetrical hemispheric priming in spatial neglect: A
... participants without neurological signs or symptoms (Experiment 1; eight females; age range 24e42 years) to verify the hemispheric effects on masked syllabic priming in normal people. In Experiment 2, we examined 12 spatial neglect patients with right-hemisphere damage (three females; mean age ¼ 63. ...
... participants without neurological signs or symptoms (Experiment 1; eight females; age range 24e42 years) to verify the hemispheric effects on masked syllabic priming in normal people. In Experiment 2, we examined 12 spatial neglect patients with right-hemisphere damage (three females; mean age ¼ 63. ...
Perception – Gain Control
... Aron, A. R., & Poldrack, R. A. (2006). Cortical and subcortical contributions to Stop signal response inhibition: role of the subthalamic nucleus. J Neurosci, 26(9), 2424-2433. Aron, A. R., Robbins, T. W., & Poldrack, R. A. (2004). Inhibition and the right inferior frontal cortex. Trends Cogn Sci, 8 ...
... Aron, A. R., & Poldrack, R. A. (2006). Cortical and subcortical contributions to Stop signal response inhibition: role of the subthalamic nucleus. J Neurosci, 26(9), 2424-2433. Aron, A. R., Robbins, T. W., & Poldrack, R. A. (2004). Inhibition and the right inferior frontal cortex. Trends Cogn Sci, 8 ...
The continuous performance test: a window on
... limbic system. The involvement of the limbic system as well as the medial and dorsolateral frontal cortex is seen as resulting from their respective inputs into the association areas, which in turn impact on the inferior parietal lobes to inhibit or facilitate attentional response. The posterior par ...
... limbic system. The involvement of the limbic system as well as the medial and dorsolateral frontal cortex is seen as resulting from their respective inputs into the association areas, which in turn impact on the inferior parietal lobes to inhibit or facilitate attentional response. The posterior par ...