Abstract
Field sensitivities were measured under conditions of M- and L-cone isolation for seven infants (8-12 weeks-old) and two adults, using silent-substitution and the visually evoked potential (VEP). The efficacy of the receptor-isolation conditions were first verified by measuring psychophysical and VEP-derived action spectra from two color-normal adults under conditions of M- and L-cone isolation. M- and L-cone action spectra obtained from the two methods were found to be similar to the Smith and Pokorny M- and L-cone fundamentals, respectively. The VEP-derived action spectra obtained from infants and adults were well fit by the Smith and Pokorny M- and L-cone fundamentals. These data, in conjunction with our previous study, confirm that M- and L-cones are operating by 8 weeks and possibly as early as 4 weeks of age.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1765-1773 |
| Number of pages | 9 |
| Journal | Vision Research |
| Volume | 38 |
| Issue number | 12 |
| DOIs | |
| State | Published - Jun 1998 |
| Externally published | Yes |
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Keywords
- Development
- Infant color vision
- Photoreceptors
- Silent substitution
- Visually evoked potential
ASJC Scopus subject areas
- Ophthalmology
- Sensory Systems
Cite this
M- and L-cones in early infancy : II. Action spectra at 8 weeks of age. / Bieber, Michelle L.; Knoblauch, Kenneth; Werner, John S.
In: Vision Research, Vol. 38, No. 12, 06.1998, p. 1765-1773.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - M- and L-cones in early infancy
T2 - II. Action spectra at 8 weeks of age
AU - Bieber, Michelle L.
AU - Knoblauch, Kenneth
AU - Werner, John S
PY - 1998/6
Y1 - 1998/6
N2 - Field sensitivities were measured under conditions of M- and L-cone isolation for seven infants (8-12 weeks-old) and two adults, using silent-substitution and the visually evoked potential (VEP). The efficacy of the receptor-isolation conditions were first verified by measuring psychophysical and VEP-derived action spectra from two color-normal adults under conditions of M- and L-cone isolation. M- and L-cone action spectra obtained from the two methods were found to be similar to the Smith and Pokorny M- and L-cone fundamentals, respectively. The VEP-derived action spectra obtained from infants and adults were well fit by the Smith and Pokorny M- and L-cone fundamentals. These data, in conjunction with our previous study, confirm that M- and L-cones are operating by 8 weeks and possibly as early as 4 weeks of age.
AB - Field sensitivities were measured under conditions of M- and L-cone isolation for seven infants (8-12 weeks-old) and two adults, using silent-substitution and the visually evoked potential (VEP). The efficacy of the receptor-isolation conditions were first verified by measuring psychophysical and VEP-derived action spectra from two color-normal adults under conditions of M- and L-cone isolation. M- and L-cone action spectra obtained from the two methods were found to be similar to the Smith and Pokorny M- and L-cone fundamentals, respectively. The VEP-derived action spectra obtained from infants and adults were well fit by the Smith and Pokorny M- and L-cone fundamentals. These data, in conjunction with our previous study, confirm that M- and L-cones are operating by 8 weeks and possibly as early as 4 weeks of age.
KW - Development
KW - Infant color vision
KW - Photoreceptors
KW - Silent substitution
KW - Visually evoked potential
UR - http://www.scopus.com/inward/record.url?scp=0345131711&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0345131711&partnerID=8YFLogxK
U2 - 10.1016/S0042-6989(97)00384-2
DO - 10.1016/S0042-6989(97)00384-2
M3 - Article
VL - 38
SP - 1765
EP - 1773
JO - Vision Research
JF - Vision Research
SN - 0042-6989
IS - 12
ER -