Mental Processes

271.

The acute effects of exposure to the electromagnetic field emitted by mobile phones on human attention.

The aim of our study was to investigate the effects of acute mobile phone exposure on a range of tasks which tapped capacity and processing speed within the attentional system. Thirty-eight healthy volunteers were randomly assigned to either an ...
Nicola Edelstyn, Anna Oldershaw (Neuroreport, 200201)
acute-effects-exposure-electromagnetic-field-emitted-mobile-phones.asp

272.

Human masticatory muscle activity and jaw position under experimental stress.

The purpose of the present study was to determine whether stress induced a consistent pattern of increased electromyographic (EMG) activity in different masticatory muscles, and whether stress produced changes in jaw position. Thirty-five dental students ...
C-M Tsai, S-L Chou, E N Gale, W D McCall (J Oral Rehabil, 200201)
human-masticatory-muscle-activity-jaw-position-under-experimental.asp

273.

Making trade-offs: a probabilistic and context-sensitive model of choice behavior.

The stochastic difference model assumes that decision makers trade normalized attribute value differences when making choices. The model is stochastic, with choice probabilities depending on the normalized difference variable, d, and a decision ...
Claudia González-Vallejo (Psychol Rev, 200201)
making-trade-offs-probabilistic-context-sensitive-model-choice.asp

274.

Threat-induced cortical processing and startle potentiation.

This paper presents cortical responses as reflected in event-related potentials (ERP) in an instructed fear paradigm. Safe cues and threat cues that predict shock were presented at an unprecedented fast rate (mean SOA of 2.1 s). Startle and subjective ...
J M P Baas, J L Kenemans, K B E Böcker, M N Verbaten (Neuroreport, 200201)
threat-induced-cortical-processing-startle-potentiation.asp

275.

Effects of risperidone on information processing and attention in first-episode schizophrenia.

Risperidone appears to have a beneficial effect in several areas of cognitive function in schizophrenic patients. In previous studies, however, the clinical characteristics of the subjects differed between studies, and were heterogeneous even in single ...
K S Hong, J G Kim, H J Koh, M S Koo, J H Kim, D Lee, E Kim (Schizophr Res, 200201)
effects-risperidone-information-processing-attention-first-episode.asp

276.

The brain-machine disanalogy revisited.

Michael Conrad was a pioneer in investigating biological information processing. He believed that there are fundamental lessons to be learned from the structure and behavior of biological brains that we are far from understanding or have implemented in ...
Bernard P Zeigler (Biosystems, 200201)
brain-machine-disanalogy-revisited.asp

277.

Conduction pathways in microtubules, biological quantum computation, and consciousness.

Technological computation is entering the quantum realm, focusing attention on biomolecular information processing systems such as proteins, as presaged by the work of Michael Conrad. Protein conformational dynamics and pharmacological evidence suggest ...
Stuart Hameroff, Alex Nip, Mitchell Porter, Jack Tuszynski (Biosystems, 200201)
conduction-pathways-microtubules-biological-quantum-computation.asp

278.

Roots and promises of chemical-based computing.

General principles of information processing by chemical-based biomolecular systems (pseudobiological information processing paradigm) are discussed. These principles include very large scale parallelism of information processing, high behavioral ...
N Rambidi (Biosystems, 200201)
roots-promises-chemical-based-computing.asp

279.

Human brain potentials reveal similar processing of non-linguistic abstract structure and linguistic syntactic structure.

This research tested the hypothesis that shared or related neurophysiological processes are required for treating (a) non-linguistic abstract structure and (b) some aspects of linguistic syntactic structure. In language, one syntactic structure can be ...
Taïssia Lelekov-Boissard, Peter F Dominey (Neurophysiol Clin, 200201)
human-brain-potentials-reveal-similar-processing-non-linguistic.asp

280.

Human information processing in different age.

The aim of investigation was to study the aging pecularities of information processing organization. 60 men and 90 women in four age groups: 30-39, 40-49, 50-59 and 60-65 were examined. The information processing was modeled by special computer test with ...
G Korobeynikov (Bratisl Lek Listy, 2002)
human-information-processing-different-age.asp