Journal of Cognitive Neuroscience articles from July 1998

Journal of Cognitive Neuroscience archives from July 1998

A cortico-spinal model of reaching and proprioception under multiple task constraints.
July 1, 1998... INTRODUCTION Empirical research on the control of primate reaching movements has ranged from studies of muscle activity through recordings from cells in the cerebral cortex of monkeys performing reaching tasks to observations of human...

Navigation and acquisition of spatial knowledge in a virtual maze.
July 1, 1998... INTRODUCTION Spatial Memory and Cognitive Maps All organisms capable of locomotion have to deal with space and spatial relations within their environment. Simple tasks like efficient grazing and foraging, path integration, or systematic...

An electrophysiological correlate of visual motion awareness in man.
July 1, 1998... INTRODUCTION To maintain a sense of perceptual spatial stability despite self-motion is a prerequisite for successful spatial orientation. Toward this end, the brain has to discriminate sensory signals resulting from the observer's own...

Spatial processing and hemispheric asymmetry: contributions of the transient/magnocellular visual system.
July 1, 1998... INTRODUCTION It has been hypothesized that the brain computes at least two kinds of spatial relation representations. One type of representation (categorical) is used to assign a spatial relation to a category such as "connected to" or...

Neural mechanisms of global and local processing: a combined PET and ERP study. (positron emission tomography; event-related potential)
July 1, 1998... INTRODUCTION Visual perception involves the analysis of the hierarchical structure of features, objects, and scenes. For example, the perception of a flock of migrating geese includes analyses at the global level to perceive their v-shaped...

On-line evidence for context use by right-brain-damaged patients.
July 1, 1998... INTRODUCTION The issue of cerebral lateralization for communicative competence has provoked much research. The current view is that the left hemisphere is dominant for language in most right-handers, whereas the right hemisphere exerts an...

Losing their configural mind: amnesic patients fail on transverse patterning.
July 1, 1998... INTRODUCTION The identification and characterization of the human amnesic syndrome represents one of the clear success stories in cognitive neuroscience over the last few decades. Pioneering studies of Scoville and Milner (1957) and Milner...

Neural correlates of levels of emotional awareness: evidence of an interaction between emotion and attention in the anterior cingulate cortex.
July 1, 1998... INTRODUCTION Compelling evidence now exists suggesting that emotional perception, judgments, and behavior can proceed outside of conscious awareness (LeDoux, 1996; Ohman & Soares, 1993). This raises the question of whether the conscious...

Lateralization of speech and auditory temporal processing.
July 1, 1998... INTRODUCTION The advantage of the left hemisphere (LH) for language is one of the best known but least understood features of the human brain (Geschwind & Galaburda, 1985). It has been related to a prelinguistic advantage of the LH for...

Effects of syntactic structure and propositional number on patterns of regional cerebral blood flow.
July 1, 1998... INTRODUCTION Sentences are the level of the language code at which the meanings of individual words are related to each other to express the propositional content of a sentence (Chomsky, 1981, 1996). The propositional content of a sentence...