Showing papers in "International Journal of Psychophysiology in 1996"

TL;DR: In this article, an enhancement of mu rhythms in the primary hand area during visual processing or during foot movement was observed. But the hand area is not needed for visual processing, nor is it needed for preparation for foot movement.

TL;DR: Results in memory research from divergent disciplines such as cognitive psychology, neuroanatomy, and neurophysiology are integrated to support the hypothesis that short-term (episodic) memory demands lead to a synchronization (increase in band power) in the theta band, whereas long- term (semantic) memory processes are reflected by oscillations in a posterior-thalamic system.

TL;DR: A narrow band analysis is made to detect those EEG frequencies that change selectively during the performance of a mental task that requires attention to internal processing.

TL;DR: Gamma-band activities exist in a number of brain structures of different species, with seemingly different functional/behavioral correlates, and experimental data hint at the existence of a distributed gamma system in the brain.

TL;DR: Results provide strong evidence that human bilateral electrodermal activity is under strong ipsilateral control when limbic structures are stimulated, and with the stimulation of cortical sites, either absence of response or weak ipsilaterally, contralateral, or bilaterally equal influences seem to be operative in the elicitation of bilateral electroDermal activity.

TL;DR: Age-related changes in the morphology of the ERP elicited by standard tones (especially the N2 and P2 components), as well as concurrent morphological changes in standard and target tones, are discussed.

TL;DR: Acts of creative thinking, be it verbally, visually or musically, are characterized by more coherence increases between occipital and frontopolar electrode sites than any other mental tasks.

TL;DR: The results indicate that the increase of frontal gamma band is related to the destabilization of the perceptual system when viewing multistable patterns.

TL;DR: In this article, EEG correlates of self-generated happy and sad emotions during counterbalanced conditions of waking and hypnosis were investigated in 16 low ("lows") and 15 highly ("highs") hypnotizable men.

TL;DR: The results show that for good performers, the extent of ERD in the lower alpha band during the semantic encoding for words is significantly larger for remembered as compared to not remembered words, whereas for bad performers the ERE in the upper alpha band is significantly more pronounced.

TL;DR: It is suggested that stimulus intensity contributes to both P300 amplitude and latency measures in important ways and is discussed in relation to the use of ERPs in applied contexts.

TL;DR: A high degree of comparability between r and Coh was observed under normal physiological conditions and with the use of good quality recordings.

TL;DR: The results suggest that P300 was produced by the same neural and cognitive mechanisms across tasks, and both P300 peak amplitude and latency demonstrated strong positive correlations between each pair of paradigms.

TL;DR: It is argued that the classical attention model of alpha is untenable, except for simple sensori-motor responses, and it is proposed that in this case, alpha amplitude may be dependent on an intention component of behaviour.

TL;DR: Data showed that posture control during balancing on unstable support surface consists mainly in adapting the motor program according to the postural requirements rather than in changes of thePostural strategy.

TL;DR: Examination of ERP topography for P3, N2 and 3 precursor peaks according to stimulus, attention condition and four types of difference-waves found lateralization of negativity in target- and nontarget-derived difference- Waves may reflect differential disruption of the frontal-temporal dialogue in registering important vs unimportant features.

TL;DR: Both the vagal and beta-adrenergic blockade show that BRS is a better predictor of parasympathetic cardiac control during blood pressure increases than duringBlood pressure decreases.

TL;DR: The results suggest that the discrimination process underlying P300 generation may originate with right frontal activation, and the N100, P200, and N200 components demonstrated several similar, albeit less robust, hemispheric asymmetries.

TL;DR: There was no difference between the sensitivity of the best within-subjects tests for amnesia simulators versus non-simulators, which suggests that P3 used as an index of the intactness of recognition memory may be useful in cases of suspected malingering.

TL;DR: Gifted adolescents may have a developmentally enhanced state of brain activity, one that more closely resembles that of college-age adults to whom they also resemble in terms of cognitive development.

TL;DR: During hypnotic analgesia the hemispheric asymmetry found in high hypnotizables was parallel to a significant reduction in the spectral mid-frequency peak of heart period variability which indicated a decrease in the level of sympathetic activity.

TL;DR: Frontal EEG alpha asymmetry was recorded from five depressed outpatients during early EEG biofeedback sessions, and there was little evidence of correlation between day-to-day asymmetry score and any single affect score.

TL;DR: Results support the use of qEEG data as a stable and valid measure of neurophysiological functioning and may prove useful in discriminating between and among clinical (neurological) and control populations.

TL;DR: EEG, EOG and ECG data were recorded from 21 subjects during instructed driving movements and during visual scanning tasks ranging from a stationary to a rapidly moving simulated driving display, finding that stationary visual attention and body movements alone produced selective effects on topographic EEG frequency patterns.

TL;DR: Results suggest that the two administration techniques produce different neural processing of olfactory stimuli and that the passive technique may be better suited for determination of the integrity of the olfaction tract for single subjects because of its greater amplitude.

TL;DR: A substantive relationship between measures of cerebral function and autonomic arousal is indicated between EEG and SCL recorded simultaneously in 10 normal adults.

TL;DR: In this article, the effects of tic disorder (TD) and hyperactivity (HA) on slow cortical potentials in children with combined TD + HA symptoms were studied, and it was hypothesized that additive effects on SNP amplitudes would be observed in children having coexisting tic and HA symptoms (TD + HA).

TL;DR: Two experiments using lists of words were performed to compare the effects of depth of processing, rate of presentation, and task incentive on recognition memory performance, self-reported workload, and cardiovascular responding.

TL;DR: The results revealed that the change rates of the alpha band amplitude are better indices for inter-individual arousal level variation than other conventional indices.

TL;DR: The reported findings could lead to the development of a new psychophysiological measure of relevance to personality and suggest that the prestimulus level of alpha power is sensitive to the anxiety coping styles.