Abstract

The fundamental question that arises from the color conundrum of #thedress is “What are the phenomena that underlie the individual differences in the reported colors when all other conditions like light and device for the display are identical?” A survey of 384 participants showed near-equal distribution into blue/black (b/b) and white/gold (w/g) groups. We looked at pupil size differences in a sample population of 53 individuals from these two groups and a group that switched from w/g to b/b. Our results showed that the w/g and switch groups had significantly lower pupil size than the b/b group (w/g<b/b, p-value=0.0086), suggesting a possible difference in light perception influencing pupil size. A standard infinity focus experiment was then conducted on 18 participants from each group to check if there is bimodality in the population, and we found a statistically significant difference (w/g<b/b, p-value=0.0132). In a third experiment, to check whether increase in retinal illuminance will trigger a change in color in the w/g group, 6 participants were administered dilation drops that increased the pupil size by 3–4 mm, but the participants did not report a switch. The results suggest a population difference in normal pupil size influencing color observation which was exposed by the dress.

© 2016 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Age, pupil size differences, and color choices for the “dress” and the “jacket”

Kavita Vemuri, Akanksha Srivastava, Saksham Agrawal, and Mithra Anand
J. Opt. Soc. Am. A 35(4) B347-B355 (2018)

Factors underlying individual differences in the color matches of normal observers

Michael A. Webster and Donald I. A. MacLeod
J. Opt. Soc. Am. A 5(10) 1722-1735 (1988)

Paradoxical pupil responses to isolated M-cone increments

Ian J. Murray, Jan Kremers, Declan McKeefry, and Neil R. A. Parry
J. Opt. Soc. Am. A 35(4) B66-B71 (2018)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription