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 ...
Functional Organization of the Cat Visual Cortex in Relation to the
... Once the neuronal activity was isolated, we examined the basic response properties using a hand-held stimulator and an audio monitor of spike discharges. After determining the optimal orientation and size of a bar stimulus, it was used to plot the receptive fields on a tangential screen using the mi ...
... Once the neuronal activity was isolated, we examined the basic response properties using a hand-held stimulator and an audio monitor of spike discharges. After determining the optimal orientation and size of a bar stimulus, it was used to plot the receptive fields on a tangential screen using the mi ...
Role of Prefrontal and Parietal Cortices in Associative - ACT-R
... Dosenbach et al. 2006). They argue that activity in all these regions may reflect more general processes than just memory. Based on the ACT-R theory (Anderson, Bothell, et al. 2004), we have developed an interpretation of the activity in this circuit (e.g., Anderson 2005; Anderson et al. 2007; Danker ...
... Dosenbach et al. 2006). They argue that activity in all these regions may reflect more general processes than just memory. Based on the ACT-R theory (Anderson, Bothell, et al. 2004), we have developed an interpretation of the activity in this circuit (e.g., Anderson 2005; Anderson et al. 2007; Danker ...
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... closely resembles that of the prepared movement, while also often involving activation of the OO and SCM muscles (Valls-Solé et al., 1999; Ravichandran et al., 2013). The major difference between prepared actions that are triggered by innocuous or startling auditory stimuli is the latency of the res ...
... closely resembles that of the prepared movement, while also often involving activation of the OO and SCM muscles (Valls-Solé et al., 1999; Ravichandran et al., 2013). The major difference between prepared actions that are triggered by innocuous or startling auditory stimuli is the latency of the res ...
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... strings presented item by item. They found patchy activation throughout the left perisylvian cortex whose location varied in different individuals. Chee et al. [1999] found activation throughout the left perisylvian cortex, as well in frontal and occipital regions and, to a lesser extent, in the rig ...
... strings presented item by item. They found patchy activation throughout the left perisylvian cortex whose location varied in different individuals. Chee et al. [1999] found activation throughout the left perisylvian cortex, as well in frontal and occipital regions and, to a lesser extent, in the rig ...
Processing Prosodic Boundaries in Natural and
... IPB (segmented) to sentences without IPB (not segmented), stronger activation was observed within the right posterior prefrontal cortex and an area within the right cerebellum. In the reverse comparison, stronger activation was observed in the gyrus of Heschl, bilaterally, and the left sylvian sulc ...
... IPB (segmented) to sentences without IPB (not segmented), stronger activation was observed within the right posterior prefrontal cortex and an area within the right cerebellum. In the reverse comparison, stronger activation was observed in the gyrus of Heschl, bilaterally, and the left sylvian sulc ...
Neuronal mechanisms of executive control by the prefrontal cortex
... memory model. Since it would be difficult for a defective central executive to oversee the simultaneous and coordinated operation of two slave systems (the visuospatial sketchpad and the phonological loop) in their model, they proposed that the executive control can be analyzed using a dual-task par ...
... memory model. Since it would be difficult for a defective central executive to oversee the simultaneous and coordinated operation of two slave systems (the visuospatial sketchpad and the phonological loop) in their model, they proposed that the executive control can be analyzed using a dual-task par ...
Basal Forebrain Projections to Somatosensory Cortex in
... region of the basal forebrain. Second, excitotoxin lesions of the globus pallidus severely deplete somatosensory cortex of AChE-positive axons. Third, Tremblay et al. (1990a,b) find that electrical stimulation of this region of the basal forebrain evokes responses in cortical area 3b that can be blo ...
... region of the basal forebrain. Second, excitotoxin lesions of the globus pallidus severely deplete somatosensory cortex of AChE-positive axons. Third, Tremblay et al. (1990a,b) find that electrical stimulation of this region of the basal forebrain evokes responses in cortical area 3b that can be blo ...
Point-Light Biological Motion Perception Activates Human Premotor
... point-light biological motion were found in lateral and inferior temporal cortex and in inferior frontal cortex. The robust responses we observed in frontal areas indicate that these stimuli can also recruit action observation networks, although they are very simplified and characterize actions by m ...
... point-light biological motion were found in lateral and inferior temporal cortex and in inferior frontal cortex. The robust responses we observed in frontal areas indicate that these stimuli can also recruit action observation networks, although they are very simplified and characterize actions by m ...
Responses to irrational actions in action
... define how the AON and MZN are engaged by simple observation of actions varying in rationality, and whether these responses are modulated by the social form of the stimulus. To make predictions for possible patterns of results, it is useful to consider the three previous studies of observation of irr ...
... define how the AON and MZN are engaged by simple observation of actions varying in rationality, and whether these responses are modulated by the social form of the stimulus. To make predictions for possible patterns of results, it is useful to consider the three previous studies of observation of irr ...
Increased prefrontal activity and reduced motor cortex
... were performed to reveal group averaged data. To first investigate the hypothesis regarding potential group differences between experienced and inexperienced lifters we first compared the group of experienced weight lifters with the group of weight lifting novices by calculating [(eccentric > concen ...
... were performed to reveal group averaged data. To first investigate the hypothesis regarding potential group differences between experienced and inexperienced lifters we first compared the group of experienced weight lifters with the group of weight lifting novices by calculating [(eccentric > concen ...
Resting-State Connectivity Predictors of Response to
... Neuroimaging treatment outcome research has shown that MDD remission is associated with decreased activity in orbitofrontal and medial prefrontal cortex (Goldapple et al, 2004; Kennedy et al, 2007), increased activity in hippocampus and dorsal cingulate cortex (Goldapple et al, 2004), and increased ...
... Neuroimaging treatment outcome research has shown that MDD remission is associated with decreased activity in orbitofrontal and medial prefrontal cortex (Goldapple et al, 2004; Kennedy et al, 2007), increased activity in hippocampus and dorsal cingulate cortex (Goldapple et al, 2004), and increased ...
Brain regions involved in heading estimation and steering control in
... and functional recovery. Past research shows that when we are walking through a texturerich environment, we primarily use optic flow, a radially expanding pattern of motion, to accurately discriminate our heading direction and steer towards a goal. The purpose of this study was to investigate the di ...
... and functional recovery. Past research shows that when we are walking through a texturerich environment, we primarily use optic flow, a radially expanding pattern of motion, to accurately discriminate our heading direction and steer towards a goal. The purpose of this study was to investigate the di ...
The Orbitofrontal Cortex and Reward
... of stimulus–reinforcement (e.g. stimulus–reward) association learning. An Olfactory Representation in the Orbitofrontal Cortex Takagi, Tanabe and colleagues (Takagi, 1991) described single neurons in the macaque orbitofrontal cortex that were activated by odors. A ventral frontal region has been im ...
... of stimulus–reinforcement (e.g. stimulus–reward) association learning. An Olfactory Representation in the Orbitofrontal Cortex Takagi, Tanabe and colleagues (Takagi, 1991) described single neurons in the macaque orbitofrontal cortex that were activated by odors. A ventral frontal region has been im ...
19 CORTICAL PROJECTIONS FROM TWO PRESTRIATE AREAS IN
... rior bank of the superior temporal sulcus, which appears to receive projections from all these areas, regions of vertical meridian representation in area 18 project to two strips outside (anterior to) area 19 and that a third, separate, field receives a small projection (anterior part of prelunate g ...
... rior bank of the superior temporal sulcus, which appears to receive projections from all these areas, regions of vertical meridian representation in area 18 project to two strips outside (anterior to) area 19 and that a third, separate, field receives a small projection (anterior part of prelunate g ...
Experiment 2 - fMRI Study
... task (Milham et al., 2001) because, as suggested above, portions of the LIFG, unlike other regions of the Stroop network, are very likely candidates to be recruited by both production and comprehension, as they have already been argued to play a regulatory, control or unifying role in many models of ...
... task (Milham et al., 2001) because, as suggested above, portions of the LIFG, unlike other regions of the Stroop network, are very likely candidates to be recruited by both production and comprehension, as they have already been argued to play a regulatory, control or unifying role in many models of ...
The cognitive neuroscience of sustained attention
... essential significance of sustained attention for higher cognitive functions like learning and memory [17]. In fact, the evidence in support of the fundamental importance of sustained attention for general cognitive abilities has largely been derived from studies in neuropsychiatric populations (see ...
... essential significance of sustained attention for higher cognitive functions like learning and memory [17]. In fact, the evidence in support of the fundamental importance of sustained attention for general cognitive abilities has largely been derived from studies in neuropsychiatric populations (see ...
Projections from the superior temporal sulcus to the agranular frontal
... SEF. Area F6 (pre-SMA) is a rostral premotor area mainly concerned with the control of arm movements. Functional properties of F6 suggest that this area plays a key role in selection and preparation of movements and in learning and organizing complex movement sequences (for a review of these data, s ...
... SEF. Area F6 (pre-SMA) is a rostral premotor area mainly concerned with the control of arm movements. Functional properties of F6 suggest that this area plays a key role in selection and preparation of movements and in learning and organizing complex movement sequences (for a review of these data, s ...
Comparing functional connectivity via thresholding correlations and
... connectivity between two regions of the brain on the basis of similar functional response. For example, if two regions of the brain show similar functional magnetic resonance imaging (fMRI) measurements over time, then we could say that they are functionally connected, even though there may be no di ...
... connectivity between two regions of the brain on the basis of similar functional response. For example, if two regions of the brain show similar functional magnetic resonance imaging (fMRI) measurements over time, then we could say that they are functionally connected, even though there may be no di ...
Region Specific Micromodularity in the Uppermost Layers in Primate
... 0.36–1.49 mm2, using a ×20 objective lens. The size of the area examined was constrained by the extent of flatness within the region. This was frequently too small to allow for random sampling with a grid. Therefore, rather than employ an unbiased sampling procedure, we instead measured all the avai ...
... 0.36–1.49 mm2, using a ×20 objective lens. The size of the area examined was constrained by the extent of flatness within the region. This was frequently too small to allow for random sampling with a grid. Therefore, rather than employ an unbiased sampling procedure, we instead measured all the avai ...
Brain Research, 178 (1979) 363-380 363 © Elsevier/North
... Receptive fields are represented by best-fitting rectangles, fields extending beyond the 60 ° × 60° tangent screen are represented by dashed lines, and the meridians are represented by vertical and horizontal lines. The inset shows the location of the section on a side view of the brain, and the por ...
... Receptive fields are represented by best-fitting rectangles, fields extending beyond the 60 ° × 60° tangent screen are represented by dashed lines, and the meridians are represented by vertical and horizontal lines. The inset shows the location of the section on a side view of the brain, and the por ...
Relationship between muscle output and functional MRI
... outside of the MRI room. These included the pressure transducer (part of the transducer is made of stainless steel), EMG and force amplifiers, the associated power supply, and the data acquisition unit (laptop computer and its docking station). The electrode wires were formed into a flat cable runni ...
... outside of the MRI room. These included the pressure transducer (part of the transducer is made of stainless steel), EMG and force amplifiers, the associated power supply, and the data acquisition unit (laptop computer and its docking station). The electrode wires were formed into a flat cable runni ...
chapter 12. schizophrenia 12.4 schizophrenia
... several neurotransmitter systems appear to play a role, particularly in the expression of positive as well as negative psychotic symptoms. Evidence for alterations in the dopamine system is the most compelling. Other neurotransmitters have also been implicated, including glutamate, serotonin, and γa ...
... several neurotransmitter systems appear to play a role, particularly in the expression of positive as well as negative psychotic symptoms. Evidence for alterations in the dopamine system is the most compelling. Other neurotransmitters have also been implicated, including glutamate, serotonin, and γa ...
Cellular Mechanisms in the Amygdala Involved in Memory
... The most detailed behavioral studies from bilateral lesion of the primate temporal lobe suggest that the temporal lobe including amygadala is involved in processing emotion (Klüver & Bucy, 1937). In this study, monkeys with bilateral temporal lobe lesions tried to eat inedible objects, to copulate w ...
... The most detailed behavioral studies from bilateral lesion of the primate temporal lobe suggest that the temporal lobe including amygadala is involved in processing emotion (Klüver & Bucy, 1937). In this study, monkeys with bilateral temporal lobe lesions tried to eat inedible objects, to copulate w ...