Spatial Contrast Sensitivity

Precision and Normative Values of a New Computerized Chart for Contrast Sensitivity Testing

“…speculated that the poor reproducibility is due to the fact that this test relies on a non-forced-choice, criterion-dependent psychophysical technique: it allows subjects to make a “blank” response when they are not able to indicate the orientation of a grating and cannot see anything 31 . Previous studies reported that this strategy is less reliable than forced-choice ones 35,36 . In this context, the AFC approach may explain the good repeatability of the computerized chart tested in this study.…”

Precision and Normative Values of a New Computerized Chart for Contrast Sensitivity Testing

“…speculated that the poor reproducibility is due to the fact that this test relies on a non-forced-choice, criterion-dependent psychophysical technique: it allows subjects to make a “blank” response when they are not able to indicate the orientation of a grating and cannot see anything 31 . Previous studies reported that this strategy is less reliable than forced-choice ones 35,36 . In this context, the AFC approach may explain the good repeatability of the computerized chart tested in this study.…”

Retraining dorsal visual pathways improves cognitive skills and executive control networks following mild traumatic brain injury

“…Following pattern offset, participants respond using left or right arrow keys, with incorrect responses signaled by a brief tone. This sequence continues until contrast threshold is measured using optimized psychophysical procedures ( Higgins et al, 1984 ). Upon completing all 20 PATH neurotraining patterns, the program displays completion feedback including: a “Thank You” message, progress stars for each complexity level completed, and threshold function graphs (optimal, current, initial) for each test frequency with corresponding background patterns.…”

Case report: Neural timing deficits prevalent in developmental disorders, aging, and concussions remediated rapidly by movement discrimination exercises

“…Lowering a subject’s contrast threshold is what increased a subject’s sensitivity to motion discrimination. This staircase procedure estimates the contrast threshold by using the most sensitive, repeatable measurements of contrast sensitivity possible ( 57 ). Each contrast threshold required 20-40 trials.…”

“…Contrast threshold data was collected using the most sensitive, repeatable measurements of contrast sensitivity ( 57 ). All contrast threshold data with date and time stamps was stored in individual and summary files, and collected automatically by the computer.…”

Precision and Normative Values of a New Computerized Chart for Contrast Sensitivity Testing

“…speculated that the poor reproducibility is due to the fact that this test relies on a non-forced-choice, criterion-dependent psychophysical technique: it allows subjects to make a “blank” response when they are not able to indicate the orientation of a grating and cannot see anything 31 . Previous studies reported that this strategy is less reliable than forced-choice ones 35,36 . In this context, the AFC approach may explain the good repeatability of the computerized chart tested in this study.…”

Retraining dorsal visual pathways improves cognitive skills and executive control networks following mild traumatic brain injury

“…Following pattern offset, participants respond using left or right arrow keys, with incorrect responses signaled by a brief tone. This sequence continues until contrast threshold is measured using optimized psychophysical procedures ( Higgins et al, 1984 ). Upon completing all 20 PATH neurotraining patterns, the program displays completion feedback including: a “Thank You” message, progress stars for each complexity level completed, and threshold function graphs (optimal, current, initial) for each test frequency with corresponding background patterns.…”

Case report: Neural timing deficits prevalent in developmental disorders, aging, and concussions remediated rapidly by movement discrimination exercises

“…Lowering a subject’s contrast threshold is what increased a subject’s sensitivity to motion discrimination. This staircase procedure estimates the contrast threshold by using the most sensitive, repeatable measurements of contrast sensitivity possible ( 57 ). Each contrast threshold required 20-40 trials.…”

“…Contrast threshold data was collected using the most sensitive, repeatable measurements of contrast sensitivity ( 57 ). All contrast threshold data with date and time stamps was stored in individual and summary files, and collected automatically by the computer.…”

Precision and Normative Values of a New Computerized Chart for Contrast Sensitivity Testing

“…speculated that the poor reproducibility is due to the fact that this test relies on a non-forced-choice, criterion-dependent psychophysical technique: it allows subjects to make a “blank” response when they are not able to indicate the orientation of a grating and cannot see anything 31 . Previous studies reported that this strategy is less reliable than forced-choice ones 35,36 . In this context, the AFC approach may explain the good repeatability of the computerized chart tested in this study.…”

Retraining dorsal visual pathways improves cognitive skills and executive control networks following mild traumatic brain injury

“…Following pattern offset, participants respond using left or right arrow keys, with incorrect responses signaled by a brief tone. This sequence continues until contrast threshold is measured using optimized psychophysical procedures ( Higgins et al, 1984 ). Upon completing all 20 PATH neurotraining patterns, the program displays completion feedback including: a “Thank You” message, progress stars for each complexity level completed, and threshold function graphs (optimal, current, initial) for each test frequency with corresponding background patterns.…”

Case report: Neural timing deficits prevalent in developmental disorders, aging, and concussions remediated rapidly by movement discrimination exercises

“…Lowering a subject’s contrast threshold is what increased a subject’s sensitivity to motion discrimination. This staircase procedure estimates the contrast threshold by using the most sensitive, repeatable measurements of contrast sensitivity possible ( 57 ). Each contrast threshold required 20-40 trials.…”

“…Contrast threshold data was collected using the most sensitive, repeatable measurements of contrast sensitivity ( 57 ). All contrast threshold data with date and time stamps was stored in individual and summary files, and collected automatically by the computer.…”