Extended PDF
... Effect of Spatial Disparity on Audiovisual Integration In contrast to the interaction between task relevance and spatial disparity that was found in parietal areas, we observed a main effect of spatial disparity in low-level visual areas V1 and, marginally significant, in V2 (cf. solid lines are be ...
... Effect of Spatial Disparity on Audiovisual Integration In contrast to the interaction between task relevance and spatial disparity that was found in parietal areas, we observed a main effect of spatial disparity in low-level visual areas V1 and, marginally significant, in V2 (cf. solid lines are be ...
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 ...
primary visual cortex and visual awareness
... (as during binocular rivalry61) or fail to isolate the target stimulus (as during perceptual crowding132). Early single-unit studies in the monkey yielded few reports of attentional modulation in the primary visual cortex (V1; REF. 133), whereas effects in extrastriate visual areas such as V4 were o ...
... (as during binocular rivalry61) or fail to isolate the target stimulus (as during perceptual crowding132). Early single-unit studies in the monkey yielded few reports of attentional modulation in the primary visual cortex (V1; REF. 133), whereas effects in extrastriate visual areas such as V4 were o ...
Imagery and Perception Share Cortical
... of 3 different object exemplars in 4 different categories (Fig. 1A). In the perception condition, the pictures (size 4.8) were presented for 4 s at a position either 6 left or right of fixation (Fig. 1B,C) in pseudorandom order. In the imagery condition, participants received auditory cues that in ...
... of 3 different object exemplars in 4 different categories (Fig. 1A). In the perception condition, the pictures (size 4.8) were presented for 4 s at a position either 6 left or right of fixation (Fig. 1B,C) in pseudorandom order. In the imagery condition, participants received auditory cues that in ...
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 ...
Working Memory in the Prefrontal Cortex
... matching-to-sample task and the delayed non-matching-to-sample task are other examples of working memory tasks in which the subject is required to maintain non-spatial information, such as an object itself, its shape, or its color, during a delay period. In the delayed-response task using monkeys, f ...
... matching-to-sample task and the delayed non-matching-to-sample task are other examples of working memory tasks in which the subject is required to maintain non-spatial information, such as an object itself, its shape, or its color, during a delay period. In the delayed-response task using monkeys, f ...
Is perception informationally encapsulated? The issue of the theory-ladenness of perception
... background knowledge, and not just to the theory that is inherent in the system. But this is not true in view of the various implasticities of perception (as the Muller-Lyer illusion), which show that how things look is not affected by what one believes. This argument is best understood in the light ...
... background knowledge, and not just to the theory that is inherent in the system. But this is not true in view of the various implasticities of perception (as the Muller-Lyer illusion), which show that how things look is not affected by what one believes. This argument is best understood in the light ...
Contribution of Pedunculopontine Tegmental Nucleus Neurons to
... PPTN also projects to the dopaminergic neurons of the substantia nigra pars compacta (SNc) (Beninato and Spencer 1986) that encode an error signal for reinforcement learning (Schultz 1998). PPTN receives limbic inputs from the hypothalamus, the ventral tegmental area (Semba and Fibiger 1992), and th ...
... PPTN also projects to the dopaminergic neurons of the substantia nigra pars compacta (SNc) (Beninato and Spencer 1986) that encode an error signal for reinforcement learning (Schultz 1998). PPTN receives limbic inputs from the hypothalamus, the ventral tegmental area (Semba and Fibiger 1992), and th ...
the properties and neural substrate of eye movements
... and patients may experience oscillopsia— illusory movement of their visual environment (see Video Display: Treatments for Nystagmus). Just how steadily must images of the world be held on the retina for vision to remain clear and stable? The amount of retinal image motion that can be tolerated befor ...
... and patients may experience oscillopsia— illusory movement of their visual environment (see Video Display: Treatments for Nystagmus). Just how steadily must images of the world be held on the retina for vision to remain clear and stable? The amount of retinal image motion that can be tolerated befor ...
Role of the Basal Ganglia in the Control of Purposive - lsr
... Clinical studies have indicated that smooth pursuit is also impaired in basal ganglia disorders (75, 326). However, because to our knowledge there has been no study that suggests how the basal ganglia contribute to the control of smooth pursuit, we do not make further comments on this issue. This ar ...
... Clinical studies have indicated that smooth pursuit is also impaired in basal ganglia disorders (75, 326). However, because to our knowledge there has been no study that suggests how the basal ganglia contribute to the control of smooth pursuit, we do not make further comments on this issue. This ar ...
Basis Functions for Object
... object-centered coordinates. We consider an alternative scheme using basis functions in which the cells have retinotopic receptive fields modulated by the orientation of the object and task-related signals. We show that this alternative is consistent with single-cell data, is computationally efficie ...
... object-centered coordinates. We consider an alternative scheme using basis functions in which the cells have retinotopic receptive fields modulated by the orientation of the object and task-related signals. We show that this alternative is consistent with single-cell data, is computationally efficie ...
Within-hemifield perceptual averaging of facial expressions
... Goltz, Kuchinad, Tweed, & Vilis, 2005; Op De Beeck & Vogles, 2000). Large receptive fields allow neuronal responses to be relatively independent of stimulus position, thereby achieving position invariant coding of complex patterns. However, large receptive fields also incur a cost of reduced spatial ...
... Goltz, Kuchinad, Tweed, & Vilis, 2005; Op De Beeck & Vogles, 2000). Large receptive fields allow neuronal responses to be relatively independent of stimulus position, thereby achieving position invariant coding of complex patterns. However, large receptive fields also incur a cost of reduced spatial ...
Reference frames for representing the location of visual and tactile
... often interspersed with cells with intermediate properties. For instance, most auditory RFs in the SC are intermediate between eye- and headcentered: that is, when the eyes move, the auditory RFs shift only partially with the eye9,10. This type of visual-auditory RF is also reported in the lateral i ...
... often interspersed with cells with intermediate properties. For instance, most auditory RFs in the SC are intermediate between eye- and headcentered: that is, when the eyes move, the auditory RFs shift only partially with the eye9,10. This type of visual-auditory RF is also reported in the lateral i ...
NOBA Memory (Encoding, Storage, Retrieval)
... are exposed to. However, recoding can add information that was not even seen or heard during the initial encoding phase. Several of the recoding processes, like forming associations between memories, can happen without our awareness. This is one reason people can sometimes remember events that did n ...
... are exposed to. However, recoding can add information that was not even seen or heard during the initial encoding phase. Several of the recoding processes, like forming associations between memories, can happen without our awareness. This is one reason people can sometimes remember events that did n ...
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 ...
Author`s personal copy
... criteria (including cytoarchitecture, myeloarchitecture, and connectivity patterns) and functional criteria such as tuning properties [13,21,24,25]. A logical consequence of this principle is that any individual anatomically or functionally defined area will contain no more than a single representat ...
... criteria (including cytoarchitecture, myeloarchitecture, and connectivity patterns) and functional criteria such as tuning properties [13,21,24,25]. A logical consequence of this principle is that any individual anatomically or functionally defined area will contain no more than a single representat ...
The Human Expression of Symmetry: Art and - Smith
... placement. Similarly, the hands, another feature of interest, were distributed so widely that it did not even seem worth measuring their positions. It is instructive to look around the world and see how often an eye appears on the center-line of a frame, in photos, advertisements, movies and so on. ...
... placement. Similarly, the hands, another feature of interest, were distributed so widely that it did not even seem worth measuring their positions. It is instructive to look around the world and see how often an eye appears on the center-line of a frame, in photos, advertisements, movies and so on. ...
Inferior Parietal Lobule Function in Spatial Perception and
... tion, i.e., the inability to attend simultaneously to two internal spatial representations or memories against or more objects in visual space. Bisiach et al. (30) have which this altered perception can be compared. This shown that a spatial deficit can exist even when atten- proposed memory loss wo ...
... tion, i.e., the inability to attend simultaneously to two internal spatial representations or memories against or more objects in visual space. Bisiach et al. (30) have which this altered perception can be compared. This shown that a spatial deficit can exist even when atten- proposed memory loss wo ...
Saccade-related spread of activity across superior colliculus may
... Targets close to the center of the visual field are represented rostrally in the SC (black circle in Fig. 1B) and targets in the periphery are represented caudally (black triangle). The deeper SC layers contain several different types of neurons that in one classification scheme (Munoz and Wurtz 199 ...
... Targets close to the center of the visual field are represented rostrally in the SC (black circle in Fig. 1B) and targets in the periphery are represented caudally (black triangle). The deeper SC layers contain several different types of neurons that in one classification scheme (Munoz and Wurtz 199 ...
Saccade-Related Spread of Activity Across Superior Colliculus May
... Targets close to the center of the visual field are represented rostrally in the SC (black circle in Fig. 1B) and targets in the periphery are represented caudally (black triangle). The deeper SC layers contain several different types of neurons that in one classification scheme (Munoz and Wurtz 199 ...
... Targets close to the center of the visual field are represented rostrally in the SC (black circle in Fig. 1B) and targets in the periphery are represented caudally (black triangle). The deeper SC layers contain several different types of neurons that in one classification scheme (Munoz and Wurtz 199 ...
Saccade-Related Spread of Activity Across
... Targets close to the center of the visual field are represented rostrally in the SC (black circle in Fig. 1B) and targets in the periphery are represented caudally (black triangle). The deeper SC layers contain several different types of neurons that in one classification scheme (Munoz and Wurtz 199 ...
... Targets close to the center of the visual field are represented rostrally in the SC (black circle in Fig. 1B) and targets in the periphery are represented caudally (black triangle). The deeper SC layers contain several different types of neurons that in one classification scheme (Munoz and Wurtz 199 ...
chelazzi et al 2012 - Emergent Attention Lab
... Based on its remarkable flexibility, the ultimate role of visual selective attention is that of providing behavioral planning processes with the most efficient and relevant representation of the outer world (see e.g., Gottlieb, 2012, for an interesting discussion on this general point). Access to the ...
... Based on its remarkable flexibility, the ultimate role of visual selective attention is that of providing behavioral planning processes with the most efficient and relevant representation of the outer world (see e.g., Gottlieb, 2012, for an interesting discussion on this general point). Access to the ...
Toward a Unified Theory of Visual Area V4
... Monkeys with V4 lesions are moderately impaired in a variety of simple 2D-shape detection and discrimination tasks. However, the V4 lesion literature is somewhat mixed on this issue, perhaps due to differences in the mediolateral extent of the lesions (Heywood and Cowey, 1987; Walsh et al., 1992; Me ...
... Monkeys with V4 lesions are moderately impaired in a variety of simple 2D-shape detection and discrimination tasks. However, the V4 lesion literature is somewhat mixed on this issue, perhaps due to differences in the mediolateral extent of the lesions (Heywood and Cowey, 1987; Walsh et al., 1992; Me ...
The Number of Cortical Neurons Used to See
... represents the number of receptive fields. The square size of 0.71 deg is the line for the results at the distance of 200 cm and square size of 2.78 is the line for results at the distance of 50 cm. The general trend, shown by the averages of all 10 subjects, shows that as check size increase, the n ...
... represents the number of receptive fields. The square size of 0.71 deg is the line for the results at the distance of 200 cm and square size of 2.78 is the line for results at the distance of 50 cm. The general trend, shown by the averages of all 10 subjects, shows that as check size increase, the n ...
THE NEUROBIOLOGY OF VISUAL-SACCADIC DECISION MAKING
... In parallel with this work on sensory systems, huge strides were also made in understanding those portions of the mammalian brain involved in movement control. In particular, advances were made in understanding how rapid shifts in the line of sight, eye movements called saccades, were produced. The ...
... In parallel with this work on sensory systems, huge strides were also made in understanding those portions of the mammalian brain involved in movement control. In particular, advances were made in understanding how rapid shifts in the line of sight, eye movements called saccades, were produced. The ...