Mental Processes

121.

Energy resource depletion, task difficulty, and cardiovascular response to a mental arithmetic challenge.

This study examined further cardiovascular effects of energy resource depletion. Participants performed initially an easy counting task (Task A easy) or a hard counting task (Task A difficult) for 5 min. Shortly thereafter, they were provided the chance ...
Rex A Wright, Rebecca E Martin, Jennifer L Bland (Psychophysiology, 200301)
energy-resource-depletion-task-difficulty-cardiovascular-response.asp

122.

Intermanual transfer of procedural learning after extended practice of probabilistic sequences.

Previous studies using simple, repeating patterns have suggested that the knowledge gained in early sequence learning is not effector-specific in that it transfers to muscle groups other than those used during training. The current experiments extended ...
Karin C Japikse, Selam Negash, James H Howard, Darlene V Howard (Exp Brain Res, 200301)
intermanual-transfer-procedural-learning-after-extended-practice.asp

123.

Inhibitory processing following damage to the parietal lobe.

We investigated inhibitory properties of spatial attention in a group of four patients with lesions involving the posterior parietal lobe. In a first experiment, a double cue inhibition of return (IOR) procedure was employed. The parietal patients showed ...
Ana B Vivas, Glyn W Humphreys, Luis J Fuentes (Neuropsychologia, 2003)
inhibitory-processing-following-damage-parietal-lobe.asp

124.

Different brain mechanisms mediate two strategies in arithmetic: evidence from Event-Related brain Potentials.

Participants were asked to verify if complex additions were smaller than 100 or not. Two hundred and forty arithmetic problems were presented, with half the problems being small-split problems (i.e. proposed sums were 2 or 5% away from 100) and half ...
Radouane El Yagoubi, Patrick Lemaire, Mireille Besson (Neuropsychologia, 2003)
different-brain-mechanisms-mediate-two-strategies-arithmetic-evidence.asp

125.

Cortical and subcortical contributions to the representation of temporal information.

Converging evidence suggests that temporal representations of brief durations are derived subcortically. We tested split-brain patient JW in order to investigate whether these representations project bilaterally or unilaterally to cortex. Using visual ...
Todd C Handy, Michael S Gazzaniga, Richard B Ivry (Neuropsychologia, 2003)
cortical-subcortical-contributions-representation-temporal-information.asp

126.

Time, space and hippocampal functions.

The hippocampus is one of the most researched structures of the brain. Studies of lesions in humans, primates and rodents have suggested to some that the primary role of the hippocampus is to act as a temporary memory buffer which is required for the ...
Christian Hölscher (Rev Neurosci, 2003)
time-space-hippocampal-functions.asp

127.

Event-related potentials--the P3 wave.

Event-Related Potentials (ERPs) are a basic, non-invasive method of neurophysiological investigation. They can be used to assess aspects of human cognitive information processing. They also can be used in experiments on higher mammals. The most important ...
Tomas Hruby, Petr Marsalek (Acta Neurobiol Exp (Wars), 2003)
event-related-potentials-p-wave.asp

128.

Statistical mechanics beyond the Hopfield model: solvable problems in neural network theory.

We present four case study examples of solvable problems in the theory of recurrent neural networks, which are relevant to our understanding of information processing in the brain, but which are also interesting from a purely statistical mechanical point ...
A C C Coolen, V Del Prete (Rev Neurosci, 2003)
statistical-mechanics-beyond-hopfield-model-solvable-problems-neural.asp

129.

Pointing to body parts: a double dissociation study.

Since Picks seminal studies on autotopagnosia dating back to the beginning of last century, no agreement has been reached regarding the nature of the putative representations underlying the act of pointing to body parts. One influential account proposed ...
Olivier Felician, Mathieu Ceccaldi, Mira Didic, Catherine Thinus-Blanc, Michel Poncet (Neuropsychologia, 2003)
pointing-body-parts-double-dissociation-study.asp

130.

From autopoiesis to neurophenomenology: Francisco Varelas exploration of the biophysics of being.

This paper reviews in detail Francisco Varelas work on subjectivity and consciousness in the biological sciences. His original approach to this "hard problem" presents a subjectivity that is radically intertwined with its biological and physical roots. ...
David Rudrauf, Antoine Lutz, Diego Cosmelli, Jean-Philippe Lachaux, Michel Le Van Quyen (Biol Res, 2003)
autopoiesis-neurophenomenology-francisco-varela-s-exploration.asp