EurekaMag.com logo
+ Translate

Electrophysiological analysis of hemispheric differences in noise tolerance


, : Electrophysiological analysis of hemispheric differences in noise tolerance. Fiziologiya Cheloveka 13(3): 355-362

The method of evoked potentials was used to analyze the effect of noise on hemispheric asymmetery in 6 women and 9 men presented signals along with interference. The noise weakened the hemispheric asymmetry of the amplitude parameters of long latency evoked potentials. More intensive suppressive effect was observed in the hemisphere which predominated with respect to the potential amplitude (the right hemisphere in the majority of the subjects). Differences between hemispheres decreased in mono-, as well as in dichotic presentation of signals and interference. Under the conditions of monotic stimulation, noise also decreased differences between ipsi- and contralateral potentials. Apparently, the more intensive suppressive effect of noise on the hemisphere predominating in a definite situation is determined by a higher level of its susceptibility, evoked by additional activation of the reticular formation of the brainstem.

(PDF 0-2 workdays service)

Accession: 005349393

Submit PDF Full Text: Here


Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:
Close
Close

Related references

Etevenon P.; Pidoux B.; Rioux P.; Peron Magnan P.; Verdeaux G.; Deniker P., 1979: Intra hemispheric and inter hemispheric electro encephalogram differences quantified by spectral analysis comparative study of 2 groups of schizophrenics and a control group. The relationships between alpha intensity, alpha frequency, root-mean-square [RMS] amplitude and their SD vs. the location of the 4 recorded EEG channels: left and right rolando-parietal, left and right parieto-occipital were studied. Spectral par...

Federmeier, K.D.; Kutas, M., 1999: Right words and left words: electrophysiological evidence for hemispheric differences in meaning processing. Both cerebral hemispheres are involved in language processing, each playing a unique role that may derive from differences in knowledge organization and on-line meaning integration. Here, we examine lateralized differences in knowledge representat...

Gil'man, I.M.; Zvereva, Z.F.; Sovetov, A.N., 1986: Electrophysiological analysis of the hemispheric interactions during compensation in disordered CNS functions. Patologicheskaia Fiziologiia i Eksperimental'naia Terapiia: 35-39

Dehen, H.; Willer, J.C.; Bathien, N.; Cambier, J., 1975: Electrophysiological analysis of the blink reflex during hemiplegia due to hemispheric lesions. Electrical stimulation of the supra-orbital nerve induces at the same threshold an early reflex reaction in the ipsilateral orbicular muscle and a delayed bilateral reflex response. These reflex activities are modified bilaterally by unilateral he...

Sinclair, B.J.; Chown, S.L., 2005: Climatic variability and hemispheric differences in insect cold tolerance: support from southern Africa. 1. Insects generally survive subzero temperatures by utilizing either freeze tolerance or freeze avoidance. Comparative analyses from a limited data set have indicated that freeze tolerance may be predominant among species at temperate latitudes i...

Dieroff, H.G., 1961: On sex differences in tolerance of noise. Archiv für Ohren-, Nasen- und Kehlkopfheilkunde 177: 282-289

Gafurov, B.G.; Alikulova, N.A., 2003: The diagnostic significance of electrophysiological analysis of an orientational reflex in hemispheric ischemic stroke. This report presents data from studies of the diagnostic significance of an orientational reflex (OR) to indifferent sound stimuli in hemispheric ischemic stroke. The following electrophysiological measures of the orientational reflex were studied...

Gafurov, B.G.; Alikulova, N.A., 2002: The diagnostic significance of electrophysiological analysis of orientation reflex in hemispheric ischemic stroke. Diagnostic significance of orientation reflex in response to neutral sound stimuli in hemispheric ischemic cerebral stroke is discussed. The following electrophysiological indices for orientation reflex were analysed: desynchronization reaction, n...

Vol'f, N.V.; Pasynkova, N.R., 2001: Hemispheric organization of verbal memory functions in seasonal winter depression: electrophysiological analysis. Spatial organization of EEG power and coherence during memorization of dichotically presented lists of words were studied in patients with winter depression (N = 17) and control subjects (N = 22). In contrast to the control subjects, the depressed...

Sackeim H.A.; Weiman A.L.; Grega D.M., 1984: Effects of predictors of hemispheric specialization on individual differences in hemispheric activation. Predictors of variation in hemispheric specialization, handedness, sex, familial history of sinistrality, writing posture and sighting dominance were found not to be independent of individual differences in characteristic activation asymmetry. Pre...