Results 1 - 10 of 71

NeuroImage 78 (2013) 249–260 Contents lists available at SciVerse ScienceDirect

by Peter J. Kohler A, Sergey V. Fogelson A, Eric A. Reavis A, Ming Meng A, J. Swaroop Guntupalli A
"... journal homepage: www.elsevier.com/locate/ynimg Pattern classification precedes region-average hemodynamic response in early ..."
Abstract - Add to MetaCart
journal homepage: www.elsevier.com/locate/ynimg Pattern classification precedes region-average hemodynamic response in early

A critical role for the right fronto-insular cortex in switching between central-executive and default-mode networks.

by Devarajan Sridharan , † ‡ , Daniel J Levitin , Vinod Menon - Proc Natl Acad Sci USA , 2008
"... Cognitively demanding tasks that evoke activation in the brain's central-executive network (CEN) have been consistently shown to evoke decreased activation (deactivation) in the default-mode network (DMN). The neural mechanisms underlying this switch between activation and deactivation of larg ..."
Abstract - Cited by 178 (1 self) - Add to MetaCart
causality analysis, we show that the rFIC-ACC network, and the rFIC, in particular, plays a critical and causal role in switching between the CEN and the DMN. We replicated this causal connectivity pattern in two additional experiments: (i) a visual attention ''oddball'' task and (ii) a

Decoding seen and attended motion directions from activity in the human visual cortex.

by Yukiyasu Kamitani , Frank Tong , Curr Biol , Tong Kamitani - Curr. Biol., , 2006
"... Summary Functional neuroimaging has successfully identified brain areas that show greater responses to visual motion Results In this study, we investigated whether ensemble activity patterns in the human visual cortex contain sufficiently reliable direction-selective information to decode seen and ..."
Abstract - Cited by 50 (0 self) - Add to MetaCart
Summary Functional neuroimaging has successfully identified brain areas that show greater responses to visual motion Results In this study, we investigated whether ensemble activity patterns in the human visual cortex contain sufficiently reliable direction-selective information to decode seen

Distributed fading memory for stimulus properties in the primary visual cortex

by Danko Nikolić, Stefan Häusler, Wolf Singer, Wolfgang Maass - PLoS Biology , 2009
"... It is currently not known how distributed neuronal responses in early visual areas carry stimulus-related information. We made multielectrode recordings from cat primary visual cortex and applied methods from machine learning in order to analyze the temporal evolution of stimulus-related information ..."
Abstract - Cited by 27 (6 self) - Add to MetaCart
It is currently not known how distributed neuronal responses in early visual areas carry stimulus-related information. We made multielectrode recordings from cat primary visual cortex and applied methods from machine learning in order to analyze the temporal evolution of stimulus

Timing of interactions across the visual field in the human cortex

by S. Vanni, M. Dojat, B J. Warnking, B C. Delon-martin, B C. Segebarth, J. Bullier A - NeuroImage
"... While it is generally believed that interactions across long distances in the visual field occur only in the higher-order cortical areas, other results suggest that such interactions are processed very early. In the preceding paper, we identified the latencies within a subset of cortical areas in th ..."
Abstract - Cited by 7 (1 self) - Add to MetaCart
to the retinotopic areas, at 80 ms for two stimuli presented in the left lower visual quadrant and at 100 ms for symmetrical stimulation of both lower quadrants. In the lateral occipital-V5 region (LOV5), two patterns presented simultaneously in one quadrant elicited a response with shorter latency and infra

Modeling the hemodynamic response function in fMRI: efficiency, bias and mis-modeling. Neuroimage

by Martin A Lindquist , Ji Meng Loh , Lauren Y Atlas , Tor D Wager , 2009
"... Most brain research to date have focused on studying the amplitude of evoked fMRI responses, though there has recently been an increased interest in measuring onset, peak latency and duration of the responses as well. A number of modeling procedures provide measures of the latency and duration of f ..."
Abstract - Cited by 34 (4 self) - Add to MetaCart
-evoked changes in brain metabolic activity and measured BOLD responses. These studies treat the evoked BOLD response as the signal of interest, without attempting to make a direct quantitative link to neuronal activity. Early studies presented events with large separation in time (e.g., visual stimuli every 20

Late onset of anterior prefrontal activity during true and false recognition: an eventrelated fMRI study

by Daniel L Schacter , Randy L Buckner , Wilma Koutstaal , Anders M Dale , Bruce R Rosen - In L. Nadel & W. Sinnott-Armstrong (Eds.), Memory , 1997
"... Previous studies using PET and fMRI to examine memory retrieval have been limited by the requirement to test different types of items in separate blocks and to average data across items and response types within blocks. We used recently developed procedures for analyzing event-related mixed trial d ..."
Abstract - Cited by 91 (24 self) - Add to MetaCart
showed significant activation for both true and false recognition, including anterior prefrontal, frontal opercular, medial parietal, and visual cortex extending into hippocampal/ parahippocampal regions. Differences across trial types were not clearly present. Event-related analyses of time course data

fMRI activity patterns in human LOC carry information about object exemplars within category

by Evelyn Eger, John Ashburner, John-dylan Haynes, Raymond J. Dolan, Geraint Rees - J. Cogn. Neurosci , 2008
"... & The lateral occipital complex (LOC) is a set of areas in the human occipito-temporal cortex responding to objects as opposed to low-level control stimuli. Conventional functional magnetic resonance imaging (fMRI) analysis methods based on regional averages could not detect signals discriminati ..."
Abstract - Cited by 35 (4 self) - Add to MetaCart
also be predicted from responses of the early visual cortex, even significantly across the changes in size and viewpoint used here. However, a dissociation was observed between these two regions of interest in the degree of discrimination for objects relative to size: In the early visual cortex, two

SIMILARITY, PRECEDENT AND ARGUMENT FROM ANALOGY

by Douglas Walton Crrar
"... Abstract In this paper, it is shown (1) that there are two schemes for argument from analogy that seem to be competitors but are not, (2) how one of them is based on a distinctive type of similarity premise, Key words: stories; case-based reasoning; argument from classification; argumentation. Thi ..."
Abstract - Add to MetaCart
. This paper is about the logical structure of argument from analogy and its relationship to legal arguments from classification and precedent. Its main purpose is to provide guidance for researchers in AI and law on which argumentation scheme for argument from analogy to use, among the leading candidates

Distributed Fading Memory for Stimulus Properties in the Primary Visual Cortex

by Wolf Singer, Wolfgang Maass , 2009
"... It is currently not known how distributed neuronal responses in early visual areas carry stimulus-related information. We made multielectrode recordings from cat primary visual cortex and applied methods from machine learning in order to analyze the temporal evolution of stimulus-related information ..."
Abstract - Add to MetaCart
It is currently not known how distributed neuronal responses in early visual areas carry stimulus-related information. We made multielectrode recordings from cat primary visual cortex and applied methods from machine learning in order to analyze the temporal evolution of stimulus
Results 1 - 10 of 71