Fig. 1
From: Genetics, sleep and memory: a recall-by-genotype study of ZNF804A variants and sleep neurophysiology
Study Workflow. Tasks in red were carried out by ALSPAC staff (not researchers) in order that researchers remained blind to participant genotype (ALSPAC – Avon Longitudinal Study of Parents and Children; BSP – Bristol Sleep Profile; LSEQ - Leeds Sleep evaluation Questionnaire; PSG – polysomnography; PSQI –Pittsburgh Sleep Quality Index; SMH - St Mary’s Hospital Sleep Questionnaire)