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Biomedical subjects

T Radil

Publications and source records attributed to T Radil.

At least 37 records · Page 2Linked to original sources
PubMed1990

[Laufberger's excitation theory].

The author gives an account of V. Laufberger's Excitation theory at the occasion of the 100th anniversary of his birthday. This work was published as a monograph in 1947 and contains many data which foresee the further development of neuro-sciences and other scientific disciplines. From a certain aspect it is more cybernetic than Wiener's "Cybernetics" published one year later. It applies in a genial way the principle of logical elements made up of binary functional elements, backfeeds, parallel organization of neuron networks, and memories based on so-called spinning excitations. It is the first modern model of cerebral activity. It combines within one system the neuron and psychic level of organization of the brain.

Cybernetics↗
PubMed1990

Stimulus anticipation in following rhythmic acoustical patterns by tapping.

Subjects followed rhythmic acoustical sequences by finger-tapping. Tapping onset preceded stimulus onset by a value close to 30 ms. It is suggested that this temporal difference might correspond to one cycle of a hypothetical timing mechanism in the brain which has been observed with other experimental paradigms.

Auditory Perception↗
PubMed1990

Development of an ability to maintain verbally instructed central gaze fixation studied in 8- to 10-year-old children.

Development of an ability to maintain verbally instructed central gaze fixation was studied in 8-, 9- and 10-year-old boys. The stability of central gaze fixation was tested by the sudden appearance of a novel, peripheral stimulus triggering reflexive saccade. In Experiment I, the ability to maintain verbally instructed central gaze fixation upon nonsense geometrical pattern was found to be equal in 8 and 9 years of life. This ability increased markedly between 9 and 10 years of age. Gaze fixation upon gradually appearing shapes during a TV-like game reducing volitional effort of subject was, however, equal in all age groups. Concentration of attention upon central stimulus as reflected by saccade latency (Experiment I) and P3-N3 amplitude of evoked potentials to peripheral flashes (Experiment II) was equal in both tasks in 8-year-olds. In contrast, higher concentration of attention upon meaningful central stimulus presented during the TV-like game was found in 9- as well as in 10-year-old boys. Developmental changes of the ability to maintain verbally instructed central gaze fixation might be related to the late structural maturation of frontal cortex.

Attention↗
PubMed1990

Gradual increase in cutaneous threshold induced by repeated hypnosis of healthy individuals and patients with atopic eczema.

Gradual increase in cutaneous pain threshold was found in healthy subjects and patients with atopic eczema during repeated hypnotic sessions with specific suggestions. This increase was less in the former than in the latter group. Repeated threshold measurements did not influence the threshold. The analgesic effect outlasted the hypnotic sessions by several months. It could be, however, suddenly reduced by appropriate hypnotic suggestion.

Arousal↗