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Visual evoked potentials to red-green stimulation in schoolchildren

Published online by Cambridge University Press:  06 September 2006

MANCA TEKAVČIČ POMPE ,
BRANKA STIRN KRANJC  and
JELKA BRECELJ
MANCA TEKAVČIČ POMPE
Affiliation:
University Eye Clinic, Ljubljana, Slovenia
BRANKA STIRN KRANJC
Affiliation:
University Eye Clinic, Ljubljana, Slovenia
JELKA BRECELJ
Affiliation:
University Eye Clinic, Ljubljana, Slovenia
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Abstract

The aim is to study chromatic visual evoked potentials (VEP) to isoluminant red-green (R-G) stimulus in schoolchildren. Sixty children (7–19 years) with normal color vision were examined, 30 binocularly and 30 monocularly. The isoluminant point was determined for each child subjectively by using heterochromatic flicker photometry, and objectively from recordings. The stimulus was a 7° circle composed of horizontal sinusoidal gratings, with spatial frequency 2 cycles/degrees and 90% contrast, presented in onset-offset mode. VEP were recorded from Oz (mid-occipital) position. Age-dependent waveform changes and changes of the positive and negative wave were studied to both binocular and monocular R-G stimulation. Age-dependent waveform changes were observed to binocular and monocular R-G stimulation. In younger children the positive wave was prominent, whereas in older children also the negative wave became more evident. The latency of the positive wave decreased linearly with age to R-G binocular stimulation. To monocular stimulation no significant changes of the latency were observed. The amplitude of the positive wave dropped exponentially with age to binocular and monocular stimulation. The latency of the negative wave increased linearly with age to binocular and monocular stimulation, whereas the amplitude did not show age-dependent changes. These findings suggest that the chromatic VEP response undergoes evident age-dependent changes during the school-age period.

Keywords

Visual evoked potentialsChromatic stimulusAge-dependent changes
Type
CHROMATIC CODING
Information
Visual Neuroscience , Volume 23 , Issue 3-4 , May 2006 , pp. 447 - 451
Copyright
© 2006 Cambridge University Press

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References

REFERENCES

American Encephalographic Society. (1994). Guideline 13: Guidelines for standard electrode position nomenclature. Clinical Neurophysiology 11, 111–113.Google Scholar
Aso, K., Watanabe, K., Negoro, T., Takaetsu, E., Furune, S., Takahashi, I., Yamamoto, N., & Nomura, K. (1988). Developmental changes of pattern reversal visual evoked potentials. Brain & Development 10, 154–159.CrossRefGoogle Scholar
Berninger, T.A., Arden, G.B., Hogg, C.R., & Frumkes, T. (1989). Separable evoked retinal and cortical potentials from each major visual pathway: Preliminary results. British Journal of Ophthalmology 73, 502–511.CrossRefGoogle Scholar
Brecelj, J. (2003). From immature to mature pattern ERG and VEP. Documenta Ophthalmologica 107, 215–224.CrossRefGoogle Scholar
Brecelj, J., štrucl, M., Zidar, I., & Tekavčič Pompe, M. (2002). Pattern ERG and VEP maturation in schoolchildren. Clinical Neurophysiology 113, 1764–1770.CrossRefGoogle Scholar
Carden, D., Kulikowski, J.J., Murray, I.J., & Parry, N.R.A. (1985). Human occipital potentials evoked by the onset of equiluminant chromatic gratings. Journal of Physiology (London) 369, 44.Google Scholar
Crognale, M.A., Kelly, J.P., Weiss, A.H., & Teller, D.Y. (1998). Development of the spatio-chromatic visual evoked potential (VEP): A longitudinal study. Vision Research 38, 3283–3292.CrossRefGoogle Scholar
Crognale, M.A. (2002). Development, maturation and aging of chromatic visual pathways: VEP results. Journal of Vision 2, 438–450.Google Scholar
Gordon, G.E. & McCulloch, D. (1999). A VEP investigation of parallel visual pathway development in primary school age children. Documenta Ophthalmologica 99, 1–10.Google Scholar
Madrid, M. & Crognale, M.A. (2000). Long-term maturation of visual pathways. Visual Neuroscience 17, 831–837.CrossRefGoogle Scholar
Morrone, M.C., Fiorentini, A., & Burr, D.C. (1996). Development of the temporal properties of visual evoked potentials to luminance and colour contrasts in infants. Vision Research 19, 3141–3155.CrossRefGoogle Scholar
Murray, I.J., Parry, N.R.A., Carden, D., & Kulikowski, J.J. (1987). Human visual evoked potentials to chromatic and achromatic gratings. Clinical Visual Science 1, 231–244.Google Scholar
Parry, N.R.A. & Murray, I.J. (1997). Electrophysiological investigation of adult and infant colour vision deficiencies. In John Dalton's Colour Vision Legacy: Selected proceedings of the International Conference, ed. Dickinson, C., Murray, I.J. & Carden, D., pp. 349–357. London, England: Taylor & Francis.
Porciatti, V. & Sartucci, F. (1999). Normative data for VEPs to red-green and blue-yellow chromatic contrast. Clinical Neurophysiology 18, 722–781.Google Scholar
Previc, F.H. (1986). Visual evoked potentials to luminance and chromatic contrast in rhesus monkeys. Vision Research 26, 1897–1907.CrossRefGoogle Scholar
Rabin, J., Switkes, E., Crognale, M.A., Schneck, M.E., & Adams, A.J. (1994). Visual evoked potentials in three-dimensional colour space: Correlates of spatio-chromatic processing. Vision Research 34, 2657–2671.CrossRefGoogle Scholar
Krauskopf, J., Williams, D.R., & Heeley, D.W. (1982). Cardinal directions of colour space. Vision Research 22, 1123–1131.CrossRefGoogle Scholar
Kulikowski, J.J., Robson, A.G., & McKeefry, D.J. (1996). Specificity and selectivity of chromatic visual evoked potentials. Vision Research 36, 3397–3401.CrossRefGoogle Scholar
Suttle, C.M. & Harding, G.F.A. (1999). Morphology of transient VEPs to luminance and chromatic pattern onset and offset. Vision Research 39, 1577–1584.CrossRefGoogle Scholar