Journal of Cognitive Neuroscience articles from March 2000

Journal of Cognitive Neuroscience archives from March 2000

The Effect of Divided Attention on Encoding and Retrieval in Episodic Memory Revealed by Positron Emission Tomography.
March 1, 2000... Abstract * The effects of divided attention (DA) on episodic memory encoding and retrieval were investigated in 12 normal young subjects by positron emission tomography (PET). Cerebral blood flow was measured while subjects were...

A Parametric Approach to Orthographic Processing in the Brain: An fMRI Study.
March 1, 2000... Abstract * Brain activation studies of orthographic stimuli typically start with the premise that different types of orthographic strings (e.g., words, pseudowords) differ from each other in discrete ways, which should be reflected in...

Anterior Cingulate and the Monitoring of Response Conflict: Evidence from an fMRI Study of Overt Verb Generation.
March 1, 2000... Abstract * Studies of a range of higher cognitive functions consistently activate a region of anterior cingulate cortex (ACC), typically posterior to the genu and superior to the corpus collosum. In particular, this ACC region appears to...

Motor Area Activity During Mental Rotation Studied by Time-Resolved Single-Trial fMRI.
March 1, 2000... Abstract * The functional equivalence of overt movements and dynamic imagery is of fundamental importance in neuroscience. Here, we investigated the participation of the neocortical motor areas in a classic task of dynamic imagery, Shepard...

Common and Distinct Neural Substrates for Pragmatic, Semantic, and Syntactic Processing of Spoken Sentences: An fMRI Study.
March 1, 2000... Abstract * Extracting meaning from speech requires the use of pragmatic, semantic, and syntactic information. A central question is: Does the processing of these different types of linguistic information have common or distinct...

Global Spectral and Location Effects in Auditory Perceptual Grouping.
March 1, 2000... Abstract * An important problem in cognitive and systems neuroscience concerns the extent to which perceptual organization can he explained by "local," peripheral physiological mechanisms, or rather by more "global," central, and...

Neuronal Activity in Early Visual Areas during Global and Local Processing: A Comment on Heinze, Hinrichis, Scholz, Burchert, and Mangun.
March 1, 2000... In a paper published in the 10:4 issue of JOCN, Heinze et al. (Heinze, Hinrichs, Scholz, Burchert, & Mangun, 1998) studied a directed attention task using hierarchically organized letter Navon stimuli. On the basis of negative PET and ERP...

Neural Activity in Early Visual Areas During Global and Local Processing: A Reply to Fink, Marshall, Halligan, and Dolan.
March 1, 2000... We thank Fink, Marshall, Halligan, and Dolan for their comments on our paper investigating global and local processing (Heinze, Hinrichs, Scholz, Burchert, & Mangun, 1998). In those comments, they focus on our negative finding with respect to...

Interview with Martha Farah.(Interview)
March 1, 2000... * Martha Farah obtained undergraduate degrees in Metallurgy and Philosophy from MIT, and a doctorate in Psychology from Harvard University. She has taught at Carnegie Mellon University and at the University of Pennsylvania, where she is now a...

Color Vision and the Four-Color-Map Problem.
March 1, 2000... Abstract * Four different colors are needed to make maps that avoid adjacent countries of the same color. Because the retinal image is two dimensional, like a map, four dimensions of chromatic experience would also be needed to optimally...

Incomplete Gustatory Lateralization as Shown by Analysis of Taste Discrimination After.
March 1, 2000... Abstract * The lateral organization of the gustatory pathway in man is incompletely understood. Majority of the studies support an uncrossed projection from each side of the tongue to the cortex, but reports of an opposite crossed...

Visual Discrimination Task Improvement: A Multi-Step Process Occurring During Sleep.(Statistical Data Included)
March 1, 2000... Abstract * Performance on a visual discrimination task shows longterm improvement after a single training session. When tested within 24 hr of training, improvement was not observed unless subjects obtained at least 6 hr of posttraining...

Novel vs. Well-learned Memory for Faces: A Positron Emission Tomography Study.
March 1, 2000... Abstract * Previous work has suggested that familiarity/novelty of learned materials affects the circuitry involved in memory, primarily in the size of activations rather than the pattern of activation. Although this work has examined both...