Some factors in brightness discrimination.

Bartley, S. Howard

doi:10.1037/h0055565

Cited by 48 publications

(18 citation statements)

References 26 publications

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“…It would seem to follow that since normal b-waves have been recorded in blind eyes with glaucomatous atrophy of the optic fibres, the retinal action potential must originate deeper than the ganglion cells. This view is consistent with that put forward by Bartley (1939), and Granit (1947), that the retinal process responsible for the b-wave is located in the bipolar layer. Summary ERGs were obtained from 73 dark-adapted glaucomatous eyes.…”

Section: Discussionsupporting

confidence: 92%

The Electroretinogram in Glaucomatous Eyes

Leydhecker¹

1950

British Journal of Ophthalmology

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SINCE DIU Bois-RZey,mond (1849) recorded the first action potential from an eve muclh work hals been dcone on the subject. The most conmprehensiv e treatment is thatt of Granit (1947) MethodAltogether 107 ER(;s were obtained from 73 glaucomatous eyes in 34 patients. Fourteen eyes suffered from chronic simple and twenty from chronic congestive glauicoma. Five eyes were blind; in nine other cases vision had been so reduced that the patients were only able to perceive light or hand movements or to count fingers. The action potential was recorded with the apparatus and technique described by Karpe (1948), the earliest investigations being done under his direction. In most cases the stimulus was a light flash of 20 lux and . . 2 ' sec.

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Section: Discussionsupporting

confidence: 92%

The Electroretinogram in Glaucomatous Eyes

Leydhecker¹

1950

British Journal of Ophthalmology

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“…First, the same general phenomenon is observed in vision (Bartley, 1939, Fox and Raichle, 1984), except that the peak brightness and visual cortical activation is at ~7 Hz (i.e., just below the α range, whereas the auditory phenomenon is just below the θ range, the respective spontaneous rhythms). Visual information does not pass through extensive brainstem processing, and the phenomenon almost certainly arises at the thalamocortical level.…”

Section: Animal Neurophysiologymentioning

confidence: 65%

“…This is not a standard AM detectability experiment (e.g., it used loudness judgments), but it has been cited for the earliest premonitions of the system’s analysis viewpoint (van Zanten, 1980). It is also interesting that Pollack discussed his results in terms of the then-current ‘alpha-scanning’ hypothesis of brain rhythms, since the equivalent vision experiment with interrupted white light gives a peak near the alpha range (Bartley, 1939). This was also related to growing interest in “excitability cycles” (Clare and Bishop, 1952, Chang, 1960), and thus premonitory of current writings on the role of cortical theta oscillations in auditory/speech processing.…”

Section: Focus On the Fluctuation Rangementioning

confidence: 99%

Syllabic (∼2–5 Hz) and fluctuation (∼1–10 Hz) ranges in speech and auditory processing

Edwards

Chang

2013

Hearing Research

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Given recent interest in syllabic rates (~2-5 Hz) for speech processing, we review the perception of “fluctuation” range (~1-10 Hz) modulations during listening to speech and technical auditory stimuli (AM and FM tones and noises, and ripple sounds). We find evidence that the temporal modulation transfer function (TMTF) of human auditory perception is not simply low-pass in nature, but rather exhibits a peak in sensitivity in the syllabic range (~2-5 Hz). We also address human and animal neurophysiological evidence, and argue that this bandpass tuning arises at the thalamocortical level and is more associated with non-primary regions than primary regions of cortex. The bandpass rather than low-pass TMTF has implications for modeling auditory central physiology and speech processing: this implicates temporal contrast rather than simple temporal integration, with contrast enhancement for dynamic stimuli in the fluctuation range.

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“…Finally, consider the color matches to 5YR 5/8 which has an OSA dominant Wavelength [2] of 590 nm. When viewed in the tachistoscope under continuous illumination.…”

Section: Resultsmentioning

confidence: 99%

“…The purpose of the current experiment was twofold: (1) to determine quantitative changes in hue or saturation occurring across three illumination intermittencies for three colors and thereby (2) to test the prediction that the Bezold-Bruecke hue shift is associated with brightness enhancement-a hue shift which can mimic the color deficiencies of protanomaly and deuteranomaly and thus account for the deficiency in color vision which has been reported for intermittent illumination.…”

mentioning

confidence: 99%