Colour coding of pattern responses in man investigated by evoked potential feedback and direct plot techniques

  title={Colour coding of pattern responses in man investigated by evoked potential feedback and direct plot techniques},
  author={David M. Regan},
  journal={Vision Research},
  • D. Regan
  • Published 1 February 1975
  • Biology
  • Vision Research
A rapid evoked potential index of cortical adaptation.
Assessment of Human Visual Performance with a Swept Evoked Potential Technique
Methods have been perfected for telling how well a person can see by direct measurement of his brain's response, andVisual performance is measured in terms of contrast sensitivity and the acuity limit, similar to the resolution limit measured by familiar Snellen eye charts.
An examination of VEP response phase.
Some early uses of evoked brain responses in investigations of human visual function
The measurement of steady-state visual evoked cortical potentials using an adaptive noise canceller.
A new software method for measuring steady-state visual evoked cortical potentials (VECPs) has been developed using the principle of adaptive noise cancelling, which has a number of advantages over the fast Fourier transform: it is a more sensitive detector, it requires fewer calculations, it is less computationally intensive, It requires less memory and it can be implemented in real time.
Visual Evoked Potentials and Colour Pattern Stimulations
Two different groups of electrophysiological responses are distinctly related to the presence or absence of a morphoscopic structure in the stimulation, and a significant increase in latencies is observed with blue stimulation.
Auditory—Visual Interactions and the Correspondence between Perceived Auditory Space and Perceived Visual Space
The effect of auditory flutter upon perceived visual frequency is possibly due to modification of a subjective criterion rather than, as previously suggested, to the entrainment or time-locking of physiological signals in the visual pathway.


Objective Method of Measuring the Relative Spectral-Luminosity Curve in Man
Steady-state evoked potentials were recorded from the human scalp and subjected to Fourier analysis during the psychophysical procedure of heterochromatic flicker photometry. The amplitudes of
Evoked potentials to changes in the chromatic contrast and luminance contrast of checkboard stimulus patterns.
  • D. Regan
  • Biology
    Advances in experimental medicine and biology
  • 1972
Two subjects turned out to be particularly susceptible to the effect of steady voluntary fixation and were able to degrade very markedly their ability to distinguish between the hues of stimuli located as far apart as red and blue.
Electrophysiological evidence for colour channels in human pattern vision
LIGHT striking the eye is absorbed by three types of pigment preferentially sensitive to either red, green or blue light. The resulting neurophysiological signals are ultimately pooled before they
Some characteristics of average steady-state and transient responses evoked by modulated light.
  • D. Regan
  • Physics
    Electroencephalography and clinical neurophysiology
  • 1966
Rapid objective refraction using evoked brain potentials.
  • D. Regan
  • Physics
    Investigative ophthalmology
  • 1973
F Fourier-analyzed EP's provide the clinician with an immediate indication of the result of altering refractive correction, so that this EP procedure is analogous to conventional subjective refraction.
Evoked potentials and sensation
Objective physiological measurements (evoked potentials) were compared with the corresponding psychophysical observations for human Ss. Discrepancies were found between the amplitude of the