Resting-state functional connectivity in neuropsychiatric disorders
... Alzheimer’s disease, and five patients with mild cognitive impairment (MCI) and found a parametric reduction in connectivity from controls to MCI to Alzheimer’s disease. They did not generate a broader map of hippocampal connectivity to other regions but focused only on the pair-wise correlations be ...
... Alzheimer’s disease, and five patients with mild cognitive impairment (MCI) and found a parametric reduction in connectivity from controls to MCI to Alzheimer’s disease. They did not generate a broader map of hippocampal connectivity to other regions but focused only on the pair-wise correlations be ...
ART 2015 AdvAnced ReTinAl TheRApy
... field of retina with the potential to induce paradigm shifts. This includes novel diagnostic technologies as well as cuttingedge therapies. Identification of such relevant novel tools and targets is key and requires setting priorities in the selection process. The philosophy of ART is to focus on tr ...
... field of retina with the potential to induce paradigm shifts. This includes novel diagnostic technologies as well as cuttingedge therapies. Identification of such relevant novel tools and targets is key and requires setting priorities in the selection process. The philosophy of ART is to focus on tr ...
Neuronal responses to face-like and facial stimuli in the monkey
... that includes the SC and is common to many vertebrates, and also suggest that this system may not be sensitive to face differences among the species. Furthermore, non-invasive human studies of patients with blindsight have suggested that the subcortical route, including the SC, the pulvinar, and the ...
... that includes the SC and is common to many vertebrates, and also suggest that this system may not be sensitive to face differences among the species. Furthermore, non-invasive human studies of patients with blindsight have suggested that the subcortical route, including the SC, the pulvinar, and the ...
The effect of learning on the face selective responses of neurons in
... large as to the optimal non-face stimulus, and that this difference should be significant. (In fact, the majority of the neurons in the cortex in the superior temporal suleus classified as showing responses selective for faces responded much more specifically than this. Further information on and di ...
... large as to the optimal non-face stimulus, and that this difference should be significant. (In fact, the majority of the neurons in the cortex in the superior temporal suleus classified as showing responses selective for faces responded much more specifically than this. Further information on and di ...
Frontal lobe and cognitive development
... the prefrontal cortex do not appear to evolve equally at the same time. Rather, by those criteria, the lateral prefrontal region clearly evolves later and farther than the other prefrontal regions. This is in obvious agreement with the late and extraordinary development of higher integrative cogniti ...
... the prefrontal cortex do not appear to evolve equally at the same time. Rather, by those criteria, the lateral prefrontal region clearly evolves later and farther than the other prefrontal regions. This is in obvious agreement with the late and extraordinary development of higher integrative cogniti ...
Three approaches to investigating functional compromise to the
... cortex and hippocampus when compared to healthy controls. Furthermore, Mayer et al. (2011) demonstrated reduced structural and functional connectivity among patients with mild TBI whose volumetric imaging measures did not suggest compromise. An enhanced understanding of the functional ...
... cortex and hippocampus when compared to healthy controls. Furthermore, Mayer et al. (2011) demonstrated reduced structural and functional connectivity among patients with mild TBI whose volumetric imaging measures did not suggest compromise. An enhanced understanding of the functional ...
(2010) Surround suppression sharpens the priority map in the lateral
... go-cue to make a saccade to a 4.5 ⫻ 4.5° window around the saccade goal. If the monkey’s eye was in the window for 100 ms from 400 to 500 ms after the go-cue, he received a drop of water or juice as reward. In ⬍5% of randomly interleaved trials on this task, no saccade target appeared and the monkey ...
... go-cue to make a saccade to a 4.5 ⫻ 4.5° window around the saccade goal. If the monkey’s eye was in the window for 100 ms from 400 to 500 ms after the go-cue, he received a drop of water or juice as reward. In ⬍5% of randomly interleaved trials on this task, no saccade target appeared and the monkey ...
Multisensory contributions to low-level, `unisensory` processing
... predict that for events generating sounds with simultaneous visual or somatosensory concomitants, the nonauditory portions of the response in auditory cortex would develop later than the auditory portions; this temporal dissociation would be similar to that for feedforward and feedback processes obs ...
... predict that for events generating sounds with simultaneous visual or somatosensory concomitants, the nonauditory portions of the response in auditory cortex would develop later than the auditory portions; this temporal dissociation would be similar to that for feedforward and feedback processes obs ...
Neuroanatomy Final Review Notes by Russ Beach
... H. Bilateral Central scotoma: blow to back of head I. Visual agnosias: inability to recognize an object due to lesions in visual association areas ...
... H. Bilateral Central scotoma: blow to back of head I. Visual agnosias: inability to recognize an object due to lesions in visual association areas ...
Cholinergic modulation of cognitive processing: insights drawn from computational models Kishan Gupta
... There are two general classes of acetylcholine receptors that can be dissociated by their binding affinity for muscarine and nicotine. At present, computational models of cholinergic function do not usually focus on dissociating the contribution of each of these receptor types. However, each has dis ...
... There are two general classes of acetylcholine receptors that can be dissociated by their binding affinity for muscarine and nicotine. At present, computational models of cholinergic function do not usually focus on dissociating the contribution of each of these receptor types. However, each has dis ...
Hereditary Pick’s disease with the G272V tau mutation shows predominant three-repeat
... Upstate, Charlesville) were used (de Silva et al., 2003) to investigate the tau isoform composition of Pick bodies. Sections from the two G272V cases as well as an Alzheimer’s disease and a PSP control were pretreated by pressure-cooking in sodium citrate buffer (pH 6) for 5 min, followed by incubat ...
... Upstate, Charlesville) were used (de Silva et al., 2003) to investigate the tau isoform composition of Pick bodies. Sections from the two G272V cases as well as an Alzheimer’s disease and a PSP control were pretreated by pressure-cooking in sodium citrate buffer (pH 6) for 5 min, followed by incubat ...
Extended PDF
... significantly influence audiovisual weighting in lower visual or auditory areas. Only higher parietal cortices (IPS0–IPS4) were governed by the classical reliability-driven reweighting with more weight being given to the auditory signal when the visual signal was unreliable. Whereas IPS0–4 mainly re ...
... significantly influence audiovisual weighting in lower visual or auditory areas. Only higher parietal cortices (IPS0–IPS4) were governed by the classical reliability-driven reweighting with more weight being given to the auditory signal when the visual signal was unreliable. Whereas IPS0–4 mainly re ...
Horizontal Interactions in Cat Striate Cortex: 1. Anatomical Substrate
... labelled terminals become organized in individual 300 to 350 pm wide clusters with a centre-to-centre spacing of about 500 pm. During the first three postnatal weeks the horizontal connections increase their span to up to 10.5 mm and the spacing between individual patches increases to about 700 prn. ...
... labelled terminals become organized in individual 300 to 350 pm wide clusters with a centre-to-centre spacing of about 500 pm. During the first three postnatal weeks the horizontal connections increase their span to up to 10.5 mm and the spacing between individual patches increases to about 700 prn. ...
connect_review_20150316 - Royal Holloway, University of London
... relationship is not fully understood (Woolrich and Stephan, 2013). While structural connections enable effective connectivity, plasticity can alter the ability of a physical structure to transmit information and this plasticity may be captured by effective connectivity measures. Stephen et al. (2009 ...
... relationship is not fully understood (Woolrich and Stephan, 2013). While structural connections enable effective connectivity, plasticity can alter the ability of a physical structure to transmit information and this plasticity may be captured by effective connectivity measures. Stephen et al. (2009 ...
State dependent activity in monkey visual cortex
... collected from one V4 neuron while the animal performed about 150 trials of the tactile-visual match. Although most trials consisted of several stimuli presented one after another, in Fig. 2 and subsequent figures the trials have been broken apart so that each stimulus presentation and the following ...
... collected from one V4 neuron while the animal performed about 150 trials of the tactile-visual match. Although most trials consisted of several stimuli presented one after another, in Fig. 2 and subsequent figures the trials have been broken apart so that each stimulus presentation and the following ...
Principles of Neural Science - Weizmann Institute of Science
... nucleus. The two most ventral layers of the nucleus contain relatively large cells and are known as the magnocellular layers; their main retinal input is from M ganglion cells. The four dorsal layers are known as parvocellular layers and receive input from P ganglion cells. Both the magnocellular an ...
... nucleus. The two most ventral layers of the nucleus contain relatively large cells and are known as the magnocellular layers; their main retinal input is from M ganglion cells. The four dorsal layers are known as parvocellular layers and receive input from P ganglion cells. Both the magnocellular an ...
`What` Is Happening in the Dorsal Visual Pathway
... The dorsal and the ventral pathway are anatomically connected to each other by several major groups of axons. The parietomedial temporal pathway travels the caudal part of the inferior parietal lobule (cIPL, dorsal pathway) to the hippocampal formation and to parahippocampal areas which are part of ...
... The dorsal and the ventral pathway are anatomically connected to each other by several major groups of axons. The parietomedial temporal pathway travels the caudal part of the inferior parietal lobule (cIPL, dorsal pathway) to the hippocampal formation and to parahippocampal areas which are part of ...
NEUROTRANSMITTER SYSTEMS IN THE VISUAL CORTEX OF
... nals, because it is confined almost entirely to neurons. Immunocytochemica1 staining with an antiserum to GAD appears to be rather uniformly distributed throughout the cortical layers of the rat (112). In the monkey visual cortex, however, distinct laminar variations in GAD immunoreactivity are pre ...
... nals, because it is confined almost entirely to neurons. Immunocytochemica1 staining with an antiserum to GAD appears to be rather uniformly distributed throughout the cortical layers of the rat (112). In the monkey visual cortex, however, distinct laminar variations in GAD immunoreactivity are pre ...
The dynamic spatio-temporal behavior of visual responses in
... of a cell needs in many cases a better descriptor than just the mean impulse rate [12,24,69]. The intrinsic temporal structure of the firing pattern, together with the mean firing rate, is required to describe the behavior of such cells more accurately [11]. Thus, receptive fields have not only a sp ...
... of a cell needs in many cases a better descriptor than just the mean impulse rate [12,24,69]. The intrinsic temporal structure of the firing pattern, together with the mean firing rate, is required to describe the behavior of such cells more accurately [11]. Thus, receptive fields have not only a sp ...
Dissociation of Mnemonic Coding and Other Functional Neuronal
... and other functional neuronal processing in the monkey prefrontal cortex. J. Neurophysiol. 77: 761–774, 1997. Single-neuron activity was recorded in the prefrontal cortex of three monkeys during the performance of a spatial delayed alternation (DA) task and during the presentation of a variety of vi ...
... and other functional neuronal processing in the monkey prefrontal cortex. J. Neurophysiol. 77: 761–774, 1997. Single-neuron activity was recorded in the prefrontal cortex of three monkeys during the performance of a spatial delayed alternation (DA) task and during the presentation of a variety of vi ...
Neuronal activity in human primary visual cortex correlates with
... in perception during rivalry and activity in several areas of the human brain19–21. However, these studies could not assess the potential involvement of V1 in rivalry because the rival images they used were not designed to evoke differential levels of activity in V1. We used fMRI to measure fluctuat ...
... in perception during rivalry and activity in several areas of the human brain19–21. However, these studies could not assess the potential involvement of V1 in rivalry because the rival images they used were not designed to evoke differential levels of activity in V1. We used fMRI to measure fluctuat ...
Negative mood-induction modulates default mode network resting
... individuals with remitted depression and healthy controls. The authors found that individuals with remitted depression showed greater connectivity between the PCC and parahippocampal gyri following the sad mood induction compared to healthy controls [11]. Whereas these previous studies reveal import ...
... individuals with remitted depression and healthy controls. The authors found that individuals with remitted depression showed greater connectivity between the PCC and parahippocampal gyri following the sad mood induction compared to healthy controls [11]. Whereas these previous studies reveal import ...
Stimulus-Dependent Synchronization of Neuronal Responses in the
... preferences for particular features of visual stimuli, but in general, the tuning is broad. Thus, even simple stimuli evoke responses in numerous neurons with differing but overlapping feature preferences, and it is commonly held that a particular feature is encoded in the pattern of graded response ...
... preferences for particular features of visual stimuli, but in general, the tuning is broad. Thus, even simple stimuli evoke responses in numerous neurons with differing but overlapping feature preferences, and it is commonly held that a particular feature is encoded in the pattern of graded response ...
On the relation between`visual research methods` and contemporary
... different visual research methods, too, as a review by Pauwels (2010) emphasises. Some work with visual materials generated by the researcher; in others, materials are created by research participants; yet others work with 'found' visual materials. All of these visual materials can be theorised, con ...
... different visual research methods, too, as a review by Pauwels (2010) emphasises. Some work with visual materials generated by the researcher; in others, materials are created by research participants; yet others work with 'found' visual materials. All of these visual materials can be theorised, con ...
Full Text
... occurs. It has been known for some time from investigations carried out in primates that a decline in the number of retinal ganglion cells follows occipital lobectomy. However, this is not detectable in all species studied and whether this occurs in humans was controversial until recent studies that ...
... occurs. It has been known for some time from investigations carried out in primates that a decline in the number of retinal ganglion cells follows occipital lobectomy. However, this is not detectable in all species studied and whether this occurs in humans was controversial until recent studies that ...