Michael T. Todd, Yael Niv, Jonathan D. Cohen
Working memory is a central topic of cognitive neuroscience because it is critical for solving real-world problems in which information from multiple temporally distant sources must be combined to...
Emotions influence our decisions. They do so in just about every walk of our lives, whether we are aware or unaware of it and whether we acknowledge it or not. In particular, I will argue that...
Placebo-Induced Changes in fMRI in the Anticipation and Experience of Pain (2009)
R Esearch, A Rticles, A. D. Craig, K. Chen, E. M. Reiman, P. Petrovic, ...
The experience of pain arises from both physiological and psychological factors, including one’s beliefs and expectations. Thus, placebo treatments that have no intrinsic pharmacological effects...
Joshua D. Greene, Leigh E. Nystrom, Andrew D. Engell, John M. Darley, Jonathan D. Cohen
or emotional processes. Here we use quotation marks to indicate the latter usage.) Personal moral dilemmas and judgments concern the appropriateness of personal moral violations, and we consider a...
John G. Kerns, Ph. D, Jonathan D. Cohen, Ph. D, Ph. D, ...
People with schizophrenia exhibit deficits in cognitive control (1). An important brain region involved in cognitive control is the anterior cingulate cortex (2). The goal of the current study was to...
Edwin C. Clayton, Janusz Rajkowski, Jonathan D. Cohen, Gary Aston-jones
The noradrenergic locus ceruleus (LC) system has been implicated in several behavioral functions, most notably, response to salient sensory events. Here, we provide new evidence indicating a role in...
Ph. D, Cameron S. Carter, John G. Kerns, Ph. D, ...
Schizophrenia patients ’ deficits in executive functions have been consistently associated with a dysfunction of the prefrontal cortex (1, 2). However, important questions remain regarding such...
Barch, Deanna M., Carter, Cameron S., Arnsten, Amy, Buchanan, Robert W., Cohen, Jonathan D., Geyer, Mark, ...
This overview describes the goals and objectives of the third conference conducted as part of the Cognitive Neuroscience Treatment Research to Improve Cognition in Schizophrenia (CNTRICS) initiative....
Jonathan D. Cohen, Kevin Dunbar, James L. Mcclelland
Please do not circulate or quote
A Matlab-based toolbox to facilitate multi-voxel pattern classification of fMRI data. (2008)
Sean M Polyn, Greg J Detre, Sylvain Takerkart, Vaidehi S Natu, Michael S Benharrosh, Benjamin D Singer, ...
We introduce a Matlab-based toolbox to facilitate pattern classification analyses on fMRI neuroimaging data. The toolbox will be released and
Concepts and Algorithms for Polygonal Simplification (2008)
In 3D computer graphics, polygonal models are often used to represent individual objects and entire environments. Planar polygons, especially triangles, are used primarily because they are easy and...
Cosyne 2007 Thursday evening, Poster I-2 Bayesian Models of Dynamic Attentional Selection (2008)
Angela J. Yu, Peter Dayan, Jonathan D. Cohen
Selection amongst potentially conflicting inputs is a critical facet of many decision making tasks. According to Bayesian optimality principles, the attentional suppression of irrelevant inputs and...
Deanna M. Barch, Cameron S. Carter, Jonathan D. Cohen
A neglected question regarding cognitive control is how control processes might detect situations calling for their involvement. The authors propose here that the demand for control may be evaluated...
Ofri Sadowsky, Student Member, Jonathan D. Cohen, Russell H. Taylor
Abstract—This paper presents a novel method for volume rendering of unstructured grids. Previously [1], we introduced an algorithm for perspective-correct interpolation of barycentric coordinates...
Detection of Synchronized Oscillations in the (2008)
Electroencephalogram An Evaluation, Nick Yeung, Rafal Bogacz, Clay B. Holroyd, Jonathan D. Cohen
The signal averaging approach typically used in ERP research assumes that peaks in ERP waveforms reflect neural activity that is uncorrelated with activity in the ongoing EEG. However, this...
Graphics Hardware (2005) (2008)
Meissner Schneider Editors, Budirijanto Purnomo, Jonathan Bilodeau, Jonathan D. Cohen, Subodh Kumar
We present a vertex compression technique suitable for efficient decompression on graphics hardware. Given a user-specified number of bits per vertex, we automatically allocate bits to vertex...
Jian Li, Tatiana Lau, Eric Maskin, Jonathan D. Cohen, P. Read Montague, ...
Auctions, normally considered as devices facilitating trade, also provide a way to probe mechanisms governing one's valuation of some good or action. One of the most intriguing phenomena in auction...
An Incremental Algorithm for Detecting Interference Between Moving Polyhedral Models (2007)
Ming Lin Madhav, Ming C. Lin, Madhav K. Ponamgi, Dinesh Manocha, Jonathan D. Cohen
hich pairs of bounding boxes are colliding, using the sweep and prune algorithm described in [2]. 2. For each intersecting bounding box pair, we determine if the objects' convex hulls are...
Cognitive, Affective, & Behavioral Neuroscience (2007)
Andrew D. Jones, Raymond Y. Cho, Leigh E. Nystrom, Jonathan D. Cohen, Todd S. Braver
A computational model of anterior cingulate function in speeded response tasks: Effects of frequency, sequence, and conflict With the advent of neuroimaging, it has become clear that the anterior...
Matthew Cushman, Erik Selberg, Robert Findler, Eric Sedlar, Darius Clynes, Jay Gowdy, ...
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Concepts and Algorithms for Polygonal Simplification (2007)
In 3D computer graphics, polygonal models are often used to represent individual objects and entire environments. Planar polygons, especially triangles, are used primarily because they are easy and...
Patrick Simen, Jonathan D. Cohen, Philip Holmes
decision threshold modulation by reward
Internalizing representations of correct behavior from feedback. Manuscript in preparation (2005)
Clay B. Holroyd, Nick Yeung, Jonathan D. Cohen, The Netherl
In a series of computational simulations we have demonstrated that a mechanism for error detection in reinforcement learning tasks (Holroyd & Coles, 2002) can also detect errors in speeded...
A mechanism for error detection in speeded response time tasks (2005)
Clay B. Holroyd, Nick Yeung, Jonathan D. Cohen, Clay B. Holroyd, Nick Yeung, ...
The concept of error detection plays a central role in theories of executive control. In this article, the authors present a mechanism that can rapidly detect errors in speeded response time tasks....
Ofri Sadowsky Jonathan, Jonathan D. Cohen, Russell H. Taylor
This paper presents a novel method for computing simulated x-ray images, or DRRs (digitally reconstructed radiographs), of tetrahedral meshes with higher-order attenuation functions. DRRs are...
Decision making, the P3, and the locus coeruleus-norepinephrine system (2005)
Sander Nieuwenhuis, Jonathan D. Cohen
Psychologists and neuroscientists have had a long-standing interest in the P3, a prominent component of the event-related brain potential. This review aims to integrate knowledge regarding the neural...
Optimal Decisions: From Neural Spikes, through Stochastic Differential Equations, to Behavior (2005)
HOLMES, Philip, SHEA-BROWN, Eric, MOEHLIS, Jeff, BOGACZ, Rafal, GAO, Juan, ASTON-JONES, Gary, ...
There is increasing evidence from in vivo recordings in monkeys trained to respond to stimuli by making left- or rightward eye movements, that firing rates in certain groups of neurons in oculo-motor...
Yeung, Nick, Holroyd, Clay B., Cohen, Jonathan D.
The feedback negativity is a component of the event-related brain potential that is elicited by feedback stimuli associated with unfavorable outcomes. The present research investigated whether this...
The neural basis of error detection: conflict monitoring and the error-related negativity (2004)
Nick Yeung, Jonathan D. Cohen, Matthew M. Botvinick
According to a recent theory, anterior cingulate cortex is sensitive to response conflict, the coactivation of mutually incompatible responses. The present research develops this theory to provide a...
Seamless Texture Atlases (2004)
R. Scopigno, D. Zorin, Seamless Texture Atlases, Budirijanto Purnomo, Jonathan D. Cohen, Subodh Kumar
Texture atlas parameterization provides an effective way to map a variety of color and data attributes from 2D texture domains onto polygonal surface meshes. However, the individual charts of such...
International Journal of Bifurcation and Chaos, Vol. 15, No. 3 (2005) 803--826 (2004)
World Scientific Publishing, Eric Brown, Juan Gao, Rafal Bogacz, Mark Gilzenrat, Jonathan D. Cohen
this paper we show how models of mutually inhibiting neural populations can make nearly optimal decisions about the identity of time-varying stimuli. This is accomplished via dynamical adjustments in...
Jonathan D. Cohen, Gary Aston-jones, Mark S. Gilzenrat
An understanding of attention is arguably one of the most important goals of the cognitive sciences and yet also has proven to be one of the most elusive. Most attention researchers will agree that a...
Nieuwenhuis, Sander, Yeung, Nick, Holroyd, Clay B., Schurger, Aaron, Cohen, Jonathan D.
A recent study has reported the observation in humans of an eventrelated brain potential component that is sensitive to the value of outcomes in a gambling task. This component, labeled medial...
Yeung, Nick, Holroyd, Clay B., Cohen, Jonathan D.
The feedback negativity is a component of the event-related brain potential that is elicited by feedback stimuli associated with unfavorable outcomes. The present research investigated whether this...
Nieuwenhuis, Sander, Yeung, Nick, Holroyd, Clay B., Schurger, Aaron, Cohen, Jonathan D.
A recent study has reported the observation in humans of an event-related brain potential component that is sensitive to the value of outcomes in a gambling task. This component, labeled medial...
Nieuwenhuis, Sander, Yeung, Nick, Holroyd, Clay B., Schurger, Aaron, Cohen, Jonathan D.
A recent study has reported the observation in humans of an eventrelated brain potential component that is sensitive to the value of outcomes in a gambling task. This component, labeled medial...
Yeung, Nick, Holroyd, Clay B., Cohen, Jonathan D.
The feedback negativity is a component of the event-related brain potential that is elicited by feedback stimuli associated with unfavorable outcomes. The present research investigated whether this...
Perceptually guided simplification of lit, textured meshes (2003)
Nathaniel Williams, David Luebke, Jonathan D. Cohen, Michael Kelley, Brenden Schubert
We present a new algorithm for best-effort simplification of polygonal meshes based on principles of visual perception. Building on previous work, we use a simple model of low-level human vision to...
William M. Perlstein, Neha K. Dixit, Cameron S. Carter, Douglas C. Noll, Jonathan D. Cohen
working memory (WM) and inhibition of prepotent responses. We examined brain activity while subjects performed tasks that placed demands on WM and overriding prepotent response tendencies, testing...
Neuron, Vol. 36, 193--198, October 10, 2002, Copyright 2002 by Cell Press (2002)
Overview Reward And, Jonathan D. Cohen
Introduction This special issue of Neuron addresses two of the most costs in loss of shared knowledge and duplication of effort---both in empirical research and theory building. basic and interesting...
Hyperscanning Simultaneous Fmri, P. Read Montague, Gregory S. Berns, Jonathan D. Cohen, Samuel M. Mcclure, Mukesh Dhamala, ...
INTRODUCTION Social interactions among humans are a central feature of cognition. However, the neural substrates that underlie how people interact with one another are virtually unknown. Some...
Sander Nieuwenhuis, Benjamin D. Holmes, Mark S. Gilzenrat, Jonathan D. Cohen, The Netherl, ...
The attentional blink refers to the transient impairment in perceiving the 2nd of 2 targets presented in close temporal proximity. In this article, the authors propose a neurobiological mechanism for...
O'Reilly, Randall C., Noelle, David C., Braver, Todd S., Cohen, Jonathan D.
We present a computational model of the intradimensional/ extradimensional (ID/ED) task (a variant of the Wisconsin card sorting task) that simulates the performance of intact and frontally lesioned...
Vincent Van Veen, Jonathan D. Cohen, Matthew M. Botvinick, Andrew Stenger And, Cameron S. Carter
INTRODUCTION The anterior cingulate cortex (ACC) is often associated with the neural implementation of attentional control (Devinsky et al., 1995; Posner and Petersen, 1990). This region has been...
Relation of prefrontal cortex dysfunction to working memory and symptoms in schizophrenia (2001)
Relation Of Prefrontal, William M. Perlstein, Cameron S. Carter, Douglas C. Noll, Jonathan D. Cohen, Ph. D, ...
h disorganization symptoms. Conclusions: These results are consistent with the hypotheses that working memory dysfunction in patients with schizophrenia is caused by a disturbance of the dorsolateral...
Relation of prefrontal cortex dysfunction to working memory and symptoms in schizophrenia (2001)
William M. Perlstein, Ph. D, Cameron S. Carter, Douglas C. Noll, Ph. D, Jonathan D. Cohen, ...
Schizophrenia has long been considered a disease of brain function that is reflected in a host of cognitive impairments in addition to the classic symptoms on which the diagnosis is based. For...
Uniform frequency images: adding geometry to images to produce space-efficient textures (2000)
Adam Hunter, Jonathan D. Cohen
We discuss the concept of uniform frequency images, which exhibit uniform local frequency properties. Such images make optimal use of space when sampled close to their Nyquist limit. A warping...
Leigh E. Nystrom, Todd S. Braver, Fred W. Sabb, Mauricio R. Delgado, Douglas C. Noll, Jonathan D. Cohen
the frontal cortex have revealed two stimulus dimensions along which frontal cortical representations may be functionally organized. One hypothesized dimension dissociates verbal from nonverbal WM...
Todd S. Braver, Deanna M. Barch, Jonathan D. Cohen
Behavioral deficits suffered by patients with schizophrenia in a wide array of cognitive domains can be conceptualized as failures of cognitive control, due to an impaired ability to internally...
Barch, Deanna M., Carter, Cameron S., Hachten, P. Charles, Usher, Marius, Cohen, Jonathan D.
Recent studies of selective attention in schizophrenia patients suggest a particular pattern of single-trial Stroop performance: increased facilitation but not interference in reaction times (RTs),...
A Parallel Distributed Processing Approach to Behavior and Biology in Schizophrenia. (1998)
Cohen, Jonathan D., Servan-Schreiber, David
Schizophrenia is marked by a variety of cognitive and biological abnormalities. In the first part of this paper we describe schizophrenic cognitive deficits in three experimental tasks which tap...
Cohen, Jonathan D., Dunbar, Kevin, McClelland, James L.
A growing body of evidence suggests that traditional views of automaticity are in need of revision. For example, automaticity has often been treated as an all-or-none phenomenon, and traditional...
A PDP approach to set size effects within the Stroop task: Reply to (1998)
Jonathan D. Cohen, James L. Mcclelland, Marius Usher, In This Reply, D. A. Balota
Spieler, and M. E. Faust (1998) did not incorporate mechanisms proposed to explain set size effects in J. D. Cohen, K. Dunbar, and J. L. McClelland (1990). The authors report a new simulation that...
Resonance raman spectroscopy of redox-active metal clusters in proteins and model compounds (1997)
Ph.D.
A Parametric Study of Prefrontal Cortex Involvement (1997)
In Human Working, Todd S. Braver, Jonathan D. Cohen, Leigh E. Nystrom, John Jonides, Edward E. Smith, ...
blem-solving all rely on working memory (WM), which acts to temporarily maintain and manipulate task-relevant information (Baddeley, 1986; Just and Carpenter, 1992; Shallice, 1988)....
Randall C. O’reilly, Todd S. Braver, Jonathan D. Cohen
We define working memory as controlled processing involving active maintenance and/or rapid learning, where controlled processing is an emergent property of the dynamic interactions of multiple brain...
I-COLLIDE: An Interactive and Exact Collision Detection System for Large-Scale Environments (1995)
Jonathan D. Cohen, Ming C. Lin, Dinesh Manocha, Madhav K. Ponamgi
: We present an exact and interactive collision detection system, I-COLLIDE, for large-scale environments. Such environments are characterized by the number of objects undergoing rigid motion and the...
I-COLLIDE: An interactive and exact collision detection system for large-scale environments (1995)
Jonathan D. Cohen, Ming C. Lin, Dinesh Manocha, Madhav K. Ponamgi
We present an exact and interactive collision detection system, I-COLLIDE, for large-scale environments. Such environments are characterized by the number of objects undergoing rigid motion and the...
I-COLLIDE: An interactive and exact collision detection system for large-scale environments (1995)
Jonathan D. Cohen, Ming C. Lin, Dinesh Manocha, Madhav Ponamgi
We present an exact and interactive collision detection system, I-COLLIDE, for large-scale environments. Such environments are characterized by the number of objects undergoing rigid motion and the...
Interactive and Exact Collision Detection for Multi-Body Environments (1994)
Jonathan D. Cohen, Ming C. Lin, Dinesh Manocha, Madhav K. Ponamgi
: We present an algorithm for exact collision detection in interactive environments. Such environments are characterized by the number of objects undergoing motion and the complexity of the models....
This thesis is not available electronically or by photocopy. Please contact Archives and Special Collections at archives@amherst.edu for more information.
Jonathan D. Cohen, James L. Mcclelland, Kevin Dunbar
Traditional views of automaticity are in need of revision. For example, automaticity otten has been treated as an all-or-none phenomenon, and traditional ~es have held that automatic processes are...
Parsing executive processes: Strategic vs. evaluative functions of the anterior cingulate cortex
Carter, Cameron S., Macdonald, Angus M., Botvinick, Matthew, Ross, Laura L., Stenger, V. Andrew, Noll, Douglas, ...
Event-related functional MRI and a version of the Stroop color naming task were used to test two conflicting theories of anterior cingulate cortex (ACC) function during executive processes of...
Prefrontal cortex and flexible cognitive control: Rules without symbols
Rougier, Nicolas P., Noelle, David C., Braver, Todd S., Cohen, Jonathan D., O'Reilly, Randall C.
Human cognitive control is uniquely flexible and has been shown to depend on prefrontal cortex (PFC). But exactly how the biological mechanisms of the PFC support flexible cognitive control remains a...
Parsing executive processes: Strategic vs. evaluative functions of the anterior cingulate cortex
Carter, Cameron S., Macdonald, Angus M., Botvinick, Matthew, Ross, Laura L., Stenger, V. Andrew, Noll, Douglas, ...
Event-related functional MRI and a version of the Stroop color naming task were used to test two conflicting theories of anterior cingulate cortex (ACC) function during executive processes of...
Prefrontal cortex and flexible cognitive control: Rules without symbols
Rougier, Nicolas P., Noelle, David C., Braver, Todd S., Cohen, Jonathan D., O'Reilly, Randall C.
Human cognitive control is uniquely flexible and has been shown to depend on prefrontal cortex (PFC). But exactly how the biological mechanisms of the PFC support flexible cognitive control remains a...
Emotions may explain inconsistencies in human behavior and forms of behavior that some have deemed irrational, though such behavior may seem more sensible after a discussion of the functions that...
Cohen, Jonathan D, McClure, Samuel M, Yu, Angela J
Many large and small decisions we make in our daily lives—which ice cream to choose, what research projects to pursue, which partner to marry—require an exploration of alternatives before...
The value of victory: social origins of the winner's curse in common value auctions
Jian Li, Tatiana Lau, Eric Maskin, Jonathan D. Cohen, P. Read Montague, ...
Auctions, normally considered as devices facilitating trade, also provide a way to probe mechanisms governing one's valuation of some good or action. One of the most intriguing phenomena in auction...