Tokyo, Jan. 1 -- UMIN Clinical Trials Registry (UMIN-CTR) received information related to the study (UMIN000060028) titled 'Effects of the difference of the display color temperature under using smartphone on human circadian rhythms' on Jan. 1.

Study Type: Interventional

Study Design: Basic Design - Cross-over Randomization - Randomized Blinding - Open -no one is blinded Control - Dose comparison

Primary Sponsor: Institute - Kyoto University

Condition: Condition - Not selection Classification by malignancy - Others Genomic information - NO

Objective: Narrative objectives1 - To determine how the difference of display color temperature under using smartphone with ordinary lighting environment affect the human circadian rhythms, especial...