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36 results for  Apostolos P Georgopoulos.
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The internal structure of the phenomenology of auditory verbal hallucinations.

Auditory verbal hallucinations (AVH) do not have uniform pathological significance. They affect patients with different brain ... Massoud Stephane, Paul Thuras, Henry Nasrallah, Apostolos P Georgopoulos ...

Vassilios (Vasileios) N Christopoulos

Adult, Computer Simulation, Hand Strength, Humans, Movement, Psychomotor Performance ... Cognitive Sciences)  working with Prof. Apostolos Georgopoulos (Brain Sciences Center) and Paul Schrater ...

Motor directional tuning across brain areas: Directional resonance and the role of inhibition for directional accuracy

Margaret Yvonne Mahan, Apostolos P Georgopoulos ... Motor directional tuning (Georgopoulos et al., 1982) has been found in every brain area in which it ...

In dragonflies, descending visual neurons code prey direction in population vector form

direction of an upcoming arm movement in monkeys (Georgopoulos et al. 1983, 1986). In this study we ... Tamara Gonzalez-Bellido, Hanchuan Peng, Jinzhu Yang, Apostolos P. Georgopoulos, Robert M Olberg ...

Neurophysiology of perceptual and motor aspects of interception.

The interception of moving targets is a complex activity that involves a dynamic interplay of several perceptual and motor processes and therefore involves a ... Hugo Merchant, Apostolos P Georgopoulos ...

Logarithmic transformation for high-field BOLD fMRI data.

Parametric statistical analyses of BOLD fMRI ... Tzagarakis, Pavlos Gourtzelidis, Maria-Alexandra Georgopoulos, Nikolaos Tsekos, Bagrat Amirikian, Seong-Gi Kim, Kâmil Ugurbil, Apostolos P Georgopoulos ...

Spatial reconstruction of trajectories of an array of recording microelectrodes.

We present a method for estimating the locations of sites visited by an array of microelectrodes. The method relies on ... Thomas Naselaris, Hugo Merchant, Bagrat Amirikian, Apostolos P Georgopoulos ...

Cerebellar activation during copying geometrical shapes.

We studied functional MRI activation in the ... A Jerde, Charidimos Tzagarakis, Maria-Alexandra Georgopoulos, Nikolaos Tsekos, Bagrat Amirikian, Seong-Gi Kim, Kâmil Ugurbil, Apostolos P Georgopoulos ...

A compact and realistic cerebral cortical layout derived from prewhitened resting-state fMRI time series: Cherniak’s adjacency rule, size law and metamodule grouping upheld

We used hierarchical tree clustering to derive a functional organizational chart of 52 human cortical areas (26 per hemisphere ... Scott M Lewis, Peka Christova, Trenton A Jerde, Apostolos P Georgopoulos ...

Cognitive Modulation of Local and Callosal Neural Interactions in Decision Making

Traditionally, the neurophysiological mechanisms of cognitive processing have been investigated at the single cell level. Here we ... Hugo Merchant, David Crowe, Antonio Fortes, Apostolos P Georgopoulos ...

Dynamics of parietal neural activity during spatial cognitive processing.

Dynamic neural processing unrelated to changes in sensory input or motor output is likely to be a hallmark of cognitive ... David A Crowe, Bruno B Averbeck, Matthew V Chafee, Apostolos P Georgopoulos ...

Parallel processing of serial movements in prefrontal cortex.

A key idea in Lashley's formulation of the problem of serial order in behavior is the postulated neural representation of ... Bruno B Averbeck, Matthew V Chafee, David A Crowe, Apostolos P Georgopoulos ...

Functional organization of parietal neuronal responses to optic-flow stimuli.

We analyzed the dissimilarity matrix of neuronal responses to moving visual stimuli using tree clustering and multidimensional ... Hugo Merchant, Alexandra Battaglia-Mayer, Apostolos P Georgopoulos ...

Cognitive dimensions of orthographic stimuli affect occipitotemporal dynamics.

Previous research documented letter-string specific cortices in the ventral visual stream near the left ... Tony W Wilson, Arthur C Leuthold, Scott M Lewis, Apostolos P Georgopoulos, Patricia J Pardo ...

Modular organization of directionally tuned cells in the motor cortex: is there a short-range order?

We investigated the presence of short-range order (<600 microm) in the directional properties of neurons in the motor cortex of the monkey. For that purpose ... Bagrat Amirikian, Apostolos P Georgopoulos ...

Top-down spatial categorization signal from prefrontal to posterior parietal cortex in the primate

In the present study we characterized the strength and time course of category-selective responses ... Merchant, David Andrew Crowe, Melissa Robertson, Antonio Francisco Fortes, Apostolos P Georgopoulos ...

Figure copying in Williams syndrome and normal subjects.

We evaluated the copying abilities of ten subjects with Williams syndrome (WS; age 6-14 years) and ten ... Maria-Alexandra Georgopoulos, Apostolos P Georgopoulos, Nicole Kurz, Nicole Kuz, Barbara Landau ...

Neural activity in prefrontal cortex during copying geometrical shapes. II. Decoding shape segments from neural ensembles.

We trained two monkeys to draw copies of geometrical shapes (e.g. squares, triangles) using a joystick, and found that ... Bruno B Averbeck, David A Crowe, Matthew V Chafee, Apostolos P Georgopoulos ...

Parietal representation of hand velocity in a copy task.

We recorded neural activity from ensembles of neurons in areas 5 and 2 of parietal cortex, while two monkeys copied ... Bruno B Averbeck, Matthew V Chafee, David A Crowe, Apostolos P Georgopoulos ...

Neural correlates of spatial judgement during object construction in parietal cortex.

We recorded the activity of parietal area 7a neurons in monkeys performing an object construction task. In each trial, a ... Matthew V Chafee, David A Crowe, Bruno B Averbeck, Apostolos P Georgopoulos ...

Displaying 1 - 20 out of 36 Search Results