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Biomedical subjects

M Indra

Publications and source records attributed to M Indra.

At least 37 records · Page 2Linked to original sources
PubMed1984

Low atropine dose increases the frequency of hippocampal theta activity.

The influence of two doses (6 and 3mg/kg) of atropine (A) on hippocampal theta activity (TA) induced by means of reticular stimlulation was studied in waking rats with implanted electrodes. The higher dose of A depressed TA and the lower dose reduced markedly its incidence. The frequency of TA remaining after A administration increased significantly. The results suggest that A acts in a different way upon the mechanisms responsible for the occurrence of TA and its frequency. An accidental finding was that' A prolongs paroxysmal hippocampal EEG -induced by reticular stmimulation.

Animals↗
PubMed1979

Alpha detection: some comments on Hardt and Kamiya, "Conflicting results in EEG alpha feedback studies".

The problem of defining EEG alpha activity, and of detecting and measuring it, is outlined. Some advantages of a threshold method are presented and compared with an amplitude-integration method. Characteristics of percent-time scoring, based upon observable alpha spindles in the waking EEG, are discussed. A probability distribution of percent-time alpha as a function of detection threshold is derived and compared with empirical data.

Action Potentials↗
PubMed1976

Computer programs suitable for processing behavioral data characterized by alternation of two states.

A program system is described which is suitable for processing behavioral and psychophysiological data characterized by alternation of two states (the transition between which is instantaneous). It is adapted for a LINC D.E.C. computer and is composed of a control program and several system programs computing different statistics and performing necessary input and output operations with the data.

Behavior↗
PubMed1976

A hybrid modular set for on-line preprocessing of data in electrophysiology.

An introductory review of hardware aspects of on-line experimental data processing reveals that the combination of a specialized (hard-wired) preprocessing unit coupled with a programmable laboratory computer is an optimal set up for an electrophysiological laboratory. The paper deals with a proposed modular system, which makes the assembly of a large number of different preprocessing units possible. Some practical applications of the preprocessing units coupled with a LINC (D.E.C.) computer are presented in conclusion.

Amplifiers, Electronic↗