TY - GEN
T1 - Effects of pattern convergence and orthogonality on visual evoked potentials
AU - Iezzi, R.
AU - Micheli-Tzanakou, E.
AU - Cottaris, N.
PY - 1990
Y1 - 1990
N2 - Patterned stimuli were generated by an optimization method called ALOPEX. This sequence of 15 patterns starts with a random pattern and converges to a vertical bar. Visual evoked potentials are then recorded using this sequence of patterns for different biasing patterns during the OFF period. In one case a blank pattern is used (unbiased case), and in a second an orthogonal pattern to the vertical bar (biased case) is used. The N2 peak exhibits a strongly increasing latency in the unbiased case, while in the orthogonally biased case there exists a correspondingly strong negative correlation. When the ON patterns start from the vertical bar ending with the random pattern the N2 latency trends are exactly opposite to those observed during the OFF period.
AB - Patterned stimuli were generated by an optimization method called ALOPEX. This sequence of 15 patterns starts with a random pattern and converges to a vertical bar. Visual evoked potentials are then recorded using this sequence of patterns for different biasing patterns during the OFF period. In one case a blank pattern is used (unbiased case), and in a second an orthogonal pattern to the vertical bar (biased case) is used. The N2 peak exhibits a strongly increasing latency in the unbiased case, while in the orthogonally biased case there exists a correspondingly strong negative correlation. When the ON patterns start from the vertical bar ending with the random pattern the N2 latency trends are exactly opposite to those observed during the OFF period.
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M3 - Conference contribution
AN - SCOPUS:0025541050
SN - 0879425598
T3 - Proceedings of the Annual Conference on Engineering in Medicine and Biology
SP - 897
EP - 898
BT - Biomedical Engineering Perspectives
PB - Publ by IEEE
T2 - Proceedings of the 12th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Y2 - 1 November 1990 through 4 November 1990
ER -