Results 301 to 310 of about 439,030 (331)
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Fixation of targets near the absolute foveal threshold
Vision Research, 1968Abstract A contact lens technique was used to record 2-dimensional eye movement patterns While subjects fixated small “white” light targets just above and two levels below foveal threshold. The subthreshold targets disappeared periodically. Eye movements, primarily drifts, were responsible for these disappearances.
Robert J. Cunitz, Robert M. Steinman
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On the Threshold: Wordsworth’s Architectonics of the Absolute
2003It is time to enter the temple. In the middle of Wordsworth’s large, narrative poem The Excursion, which again was to stand at the middle of his even more encompassing poem called The Recluse, one reads: ‘As chanced, the portals of the sacred Pile/Stood open; and we entered’ (V, 138–9).1 Chance is kind to the figures of the Solitary, the Wanderer and ...
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Auditory reaction time and absolute threshold in cat
The Journal of the Acoustical Society of America, 1977Reaction time and absolute thresholds for acoustic stimuli were measured in cats using an operant reaction-time procedure in conjunction with titration methodology. The reaction-time/titration procedure incorporated a self-paced feature and utilized a photobeam operandum developed for the cat.
George M. Gerken, Dick Sandlin
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Interaural Phase and the Absolute Threshold for Tone
The Journal of the Acoustical Society of America, 1962The present study agrees with earlier ones that the binaural absolute threshold is about 3 dB lower than the monaural. It also finds that reversing the interaural phase of the signal lowers the threshold still further. The findings are shown to indicate the likelihood that so-called absolute thresholds are really masked thresholds, with the masking ...
K. Jerome Diercks, Lloyd A. Jeffress
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Binocular Summation at the Absolute Threshold of Peripheral Vision*
Journal of the Optical Society of America, 1962Binocular probability of seeing, P(B), was measured as a function of the time between onsets of 2-msec, 35-min visual angle flashes to corresponding locations 7° horizontally displaced from the foveas of both eyes of dark-adapted subjects. P(B) was greater than the value that would be predicted if the two eyes were independent detectors [P′(B)] for ...
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Human Visual Purple and Absolute Threshold
Nature, 1954I HAVE just read the interesting communication by Drs. Crescitelli and Dartnall on human visual purple (rhodopsin)1. The last paragraph of that article may give rise to the impression that new evidence has been brought forward, as a result of which the work of Hecht, Shlaer and Pirenne2 on the minimum number of light quanta necessary for vision might ...
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Inadequacies of absolute threshold levels for diagnosing prediabetes
Diabetes/Metabolism Research and Reviews, 2010AbstractPrediabetes comprising Impaired Fasting Glucose (IFG) and Impaired Glucose Tolerance (IGT) represents an intermediate stage of altered glucose metabolism between normal glucose levels and type 2 diabetes mellitus and is associated with an increased risk for the development of diabetes and cardiovascular disease.
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The anaerobic threshold: 50+ years of controversy
Journal of Physiology, 2021David C Poole +2 more
exaly