Is neocortex essentially multisensory?
... cortical operations. Although chemosensory processes are not considered here, it is noteworthy that pervasive multisensory interactions are also characteristic of these sensory systems [8]. Recasting the role of lower- and higher-order cortical processes in the light of multisensory interactions wil ...
... cortical operations. Although chemosensory processes are not considered here, it is noteworthy that pervasive multisensory interactions are also characteristic of these sensory systems [8]. Recasting the role of lower- and higher-order cortical processes in the light of multisensory interactions wil ...
Contextual modulation and stimulus selectivity in extrastriate cortex
... never still (Otero-Millan et al., 2008), and objects are typically stationary (Stocker & Simoncelli, 2006), most motion encountered by the visual system is due to displacement of the eye in space, either through saccades, smooth pursuit, head rotation, or navigation. The resulting optic flow stimuli ...
... never still (Otero-Millan et al., 2008), and objects are typically stationary (Stocker & Simoncelli, 2006), most motion encountered by the visual system is due to displacement of the eye in space, either through saccades, smooth pursuit, head rotation, or navigation. The resulting optic flow stimuli ...
Volume and Number of Neurons of the Human
... neurons in CA1 (r 5 20.84, 2P , 0.0001) and subiculum (r 5 20.49, 2P , 0.05) but not in other subdivisions. Pronounced AD-related reductions in neuron number were found only in the subiculum and the fascia dentata. Compared with controls, both losses represented 23% of neurons (P , 0.05). These resu ...
... neurons in CA1 (r 5 20.84, 2P , 0.0001) and subiculum (r 5 20.49, 2P , 0.05) but not in other subdivisions. Pronounced AD-related reductions in neuron number were found only in the subiculum and the fascia dentata. Compared with controls, both losses represented 23% of neurons (P , 0.05). These resu ...
Review Article Long-Term Memory Search across the
... the calcium-dependent kinase CAMKII and are able to spread laterally tens of microns away from the original LTP site [67–69]. Importantly, LTP may be induced by diffusing enzymes even in certain silent spines [66]. The entire dendritic branch is then able to memorize the stimulus direction for short ...
... the calcium-dependent kinase CAMKII and are able to spread laterally tens of microns away from the original LTP site [67–69]. Importantly, LTP may be induced by diffusing enzymes even in certain silent spines [66]. The entire dendritic branch is then able to memorize the stimulus direction for short ...
fMR-adaptation reveals separate processing regions for the
... can conclude that the neurons in this region do not participate in the processing of this stimulus property. If, however, there is recovery from adaptation (as evidenced by a rise in the BOLD signal), then one can conclude that neurons in this region do play a role in the processing of that stimulus ...
... can conclude that the neurons in this region do not participate in the processing of this stimulus property. If, however, there is recovery from adaptation (as evidenced by a rise in the BOLD signal), then one can conclude that neurons in this region do play a role in the processing of that stimulus ...
Interlocking finger test: a bedside screen for parietal lobe dysfunction
... correlated with the interlocking finger task did not reach significance presumably because of a lack of power (see table 1). Imitation of finger figures probably entails a combination of limb praxis, optic praxis, visual-spatial, and visuoconstructional skills. Each of these domains has been linked ...
... correlated with the interlocking finger task did not reach significance presumably because of a lack of power (see table 1). Imitation of finger figures probably entails a combination of limb praxis, optic praxis, visual-spatial, and visuoconstructional skills. Each of these domains has been linked ...
MRI Assessment of Gray and White Matter Distribution in
... treatment, while no significant differences between the two groups in the severity of delusions, hallucinations, and bizarre behavior have been reported (29). Our group observed that poor-outcome patients exhibited relatively larger ventricular size, implying greater cortical deficits, compared with ...
... treatment, while no significant differences between the two groups in the severity of delusions, hallucinations, and bizarre behavior have been reported (29). Our group observed that poor-outcome patients exhibited relatively larger ventricular size, implying greater cortical deficits, compared with ...
How Reliably Does a Neuron in the Visual Motion Pathway of fhe Fly
... 1366 Reliability of a fly motion-sensitive neuron on the relationship between the amplitude of the noise and that of the stimulus-induced response component ('SIRC'). In a normal behavioural situation the animal's own actions and reactions have immediate consequences on its sensory input. Therefore ...
... 1366 Reliability of a fly motion-sensitive neuron on the relationship between the amplitude of the noise and that of the stimulus-induced response component ('SIRC'). In a normal behavioural situation the animal's own actions and reactions have immediate consequences on its sensory input. Therefore ...
The Number of Cortical Neurons Used to See
... My results set a substantial lower bound (50) on the number of cortical cells contributing to seeing. The results of this study are an important step toward unraveling how we use neurons to see. 1.1 Primary Visual Cortex: simple and complex cells The retina is sensitive to light. It sends signals, b ...
... My results set a substantial lower bound (50) on the number of cortical cells contributing to seeing. The results of this study are an important step toward unraveling how we use neurons to see. 1.1 Primary Visual Cortex: simple and complex cells The retina is sensitive to light. It sends signals, b ...
Multisensory anatomical pathways - Centre de Recherche Cerveau
... 2008 for recent reviews) and highlight that the mechanisms for multisensory interplay are believed to include several levels of brain processing, from the thalamus to the primary sensory areas and higher stages of sensory processing. Such an increase in the diversity of the pathways by which multise ...
... 2008 for recent reviews) and highlight that the mechanisms for multisensory interplay are believed to include several levels of brain processing, from the thalamus to the primary sensory areas and higher stages of sensory processing. Such an increase in the diversity of the pathways by which multise ...
Anatomical Evidence of Multimodal Integration in Primate
... detect afferent connections to primary visual cortex from areas processing modalities other than vision. The reported absence of multisensory input to area 17 is also surprising in view of the consequences of early deprivation. Congenital blindness leads to early visual cortical areas in the dorsal ...
... detect afferent connections to primary visual cortex from areas processing modalities other than vision. The reported absence of multisensory input to area 17 is also surprising in view of the consequences of early deprivation. Congenital blindness leads to early visual cortical areas in the dorsal ...
Normal Tension Glaucoma
... Prostaglandins are supported due to their ability to reduce IOP that is already within the statistically normal range with minimal adverse effects Alpha-2 adrenergic agonists and beta blockers theoretically may affect OPP adversely CAIs often not advocated due to poor IOP lowering potential in ...
... Prostaglandins are supported due to their ability to reduce IOP that is already within the statistically normal range with minimal adverse effects Alpha-2 adrenergic agonists and beta blockers theoretically may affect OPP adversely CAIs often not advocated due to poor IOP lowering potential in ...
The Human Expression of Symmetry: Art and - Smith
... to the low-spatial-frequency content of the patterns (since the range criterion is generally proportional to the spatial frequency content of the pattern). The discovery that it is polarityinsensitive complex cells that signal the symmetry axis of symmetric patterns [Lee, 1995 #46] makes it importa ...
... to the low-spatial-frequency content of the patterns (since the range criterion is generally proportional to the spatial frequency content of the pattern). The discovery that it is polarityinsensitive complex cells that signal the symmetry axis of symmetric patterns [Lee, 1995 #46] makes it importa ...
Limitations of Neural Map Topography for Decoding Spatial
... Topographic maps are common throughout the nervous system, yet their functional role is still unclear. In particular, whether they are necessary for decoding sensory stimuli is unknown. Here we examined this question by recording population activity at the cellular level from the larval zebrafish te ...
... Topographic maps are common throughout the nervous system, yet their functional role is still unclear. In particular, whether they are necessary for decoding sensory stimuli is unknown. Here we examined this question by recording population activity at the cellular level from the larval zebrafish te ...
Linking Neural Activity to Visual Perception: Separating Sensory and
... highly selective for both the direction and speed of visual motion, and produce crisp responses to preferred stimuli that fall within their RFs [4]; they are also selective for stimulus size [5] and binocular disparity [6]. Although V1, V2, and V3 neurons can also be selective for the direction and ...
... highly selective for both the direction and speed of visual motion, and produce crisp responses to preferred stimuli that fall within their RFs [4]; they are also selective for stimulus size [5] and binocular disparity [6]. Although V1, V2, and V3 neurons can also be selective for the direction and ...
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 ...
Do cortical areas emerge from a protocottex?
... organization of cells and connections that underlie functional properties is also similar. This interpretation is supported by the finding that some cells in the somatosensory cortex to which visual input is directed can respond both to visual and somatosensory stimuli in modality-appropriate ways ~ ...
... organization of cells and connections that underlie functional properties is also similar. This interpretation is supported by the finding that some cells in the somatosensory cortex to which visual input is directed can respond both to visual and somatosensory stimuli in modality-appropriate ways ~ ...
Self-images in the video monitor coded by monkey intraparietal
... and found in the intraparietal cortex a group of bimodal (somatosensory and visual) neurons which seemed to represent the image of the hand into which the tool was incorporated as its extension (Iriki et al., 1996). That is, around the somatosensory receptive field resided in the hand/forearm area w ...
... and found in the intraparietal cortex a group of bimodal (somatosensory and visual) neurons which seemed to represent the image of the hand into which the tool was incorporated as its extension (Iriki et al., 1996). That is, around the somatosensory receptive field resided in the hand/forearm area w ...
Multimodal functional and structural neuroimaging investigation of major depressive
... Neuroimaging tasks included emotional facial processing, negative attentional bias (emotional Stroop), resting state functional MRI and structural MRI. Results: A significant group by time interaction was identified in the anterior default mode network in which MDD patients showed increased connecti ...
... Neuroimaging tasks included emotional facial processing, negative attentional bias (emotional Stroop), resting state functional MRI and structural MRI. Results: A significant group by time interaction was identified in the anterior default mode network in which MDD patients showed increased connecti ...
The distributed human neural system for face perception
... Box 1. Is the face perception system specialized solely for face perception? Although neuroimaging studies have consistently shown that certain occipitotemporal regions respond more to faces than other objects, it is not clear if these regions are specialized only for face perception. Patients with ...
... Box 1. Is the face perception system specialized solely for face perception? Although neuroimaging studies have consistently shown that certain occipitotemporal regions respond more to faces than other objects, it is not clear if these regions are specialized only for face perception. Patients with ...
Atrial Fibrillation in Cardiac Sarcoidosis
... Sarcoidosis is a granulomatous disease that affects predominantly the lungs of young adults aged 25-45 years and to a lesser extent other organs, including the heart. The annual incidence of sarcoidosis in the United States has been estimated to be 10.9 per 100,000 in whites and 35.5 per 100,000 in ...
... Sarcoidosis is a granulomatous disease that affects predominantly the lungs of young adults aged 25-45 years and to a lesser extent other organs, including the heart. The annual incidence of sarcoidosis in the United States has been estimated to be 10.9 per 100,000 in whites and 35.5 per 100,000 in ...
Time Related Effects on Functional Brain Connectivity After
... rate, and baseline measurements as covariates. Although both compounds did not change cognitive performance on several tests, significant effects were found on connectivity with multiple resting state networks. Serotonergic stimulation primarily reduced connectivity with the sensorimotor network and ...
... rate, and baseline measurements as covariates. Although both compounds did not change cognitive performance on several tests, significant effects were found on connectivity with multiple resting state networks. Serotonergic stimulation primarily reduced connectivity with the sensorimotor network and ...
cerebral cortex - Global Anatomy Home Page
... following cortical damage but, rather, sensory and motor problems tend to be combined with “higher order” dysfunctions involving thought processes, speech, emotions, or memory. This probably reflects the fact that primary sensory and motor areas cover only a relatively small fraction of the cortex a ...
... following cortical damage but, rather, sensory and motor problems tend to be combined with “higher order” dysfunctions involving thought processes, speech, emotions, or memory. This probably reflects the fact that primary sensory and motor areas cover only a relatively small fraction of the cortex a ...
FULL-TEXT - Research Explorer
... become reflexively aware of the process of ethnographic research and therefore of their ethical, political and indeed sensory roles in creating research outcomes. The ethnographic utility of this approach is literally ‘self’-evident and suggests that a fundamental question for anthropology about vis ...
... become reflexively aware of the process of ethnographic research and therefore of their ethical, political and indeed sensory roles in creating research outcomes. The ethnographic utility of this approach is literally ‘self’-evident and suggests that a fundamental question for anthropology about vis ...
Brain Research, 178 (1979) 363-380 363 © Elsevier/North
... the distribution of receptive field size was not random. There was a greater incidence of very large receptive fields in two regions. The first region was the most anterior part of IT (see Fig. 1C and D). Within this area 67 ~ of the 56 receptive fields were larger than 60 ° × 60 °. The second regio ...
... the distribution of receptive field size was not random. There was a greater incidence of very large receptive fields in two regions. The first region was the most anterior part of IT (see Fig. 1C and D). Within this area 67 ~ of the 56 receptive fields were larger than 60 ° × 60 °. The second regio ...