In case anyone is curious — here is the lamp used in the study: <a href="http:&#x2F;&#x2F;www.amazon.com&#x2F;gp&#x2F;aw&#x2F;d&#x2F;B00PCN4UVU&#x2F;ref=mp_s_a_1_1&#x2F;184-2212292-9332300?qid=1447969060&amp;sr=8-1&amp;pi=SY200_QL40&amp;keywords=carex+light&amp;dpPl=1&amp;dpID=31WFLHEU3RL&amp;ref=plSrch" rel="nofollow">http:&#x2F;&#x2F;www.amazon.com&#x2F;gp&#x2F;aw&#x2F;d&#x2F;B00PCN4UVU&#x2F;ref=mp_s_a_1_1&#x2F;184-...</a>