Sample characteristics and task performance.

Sample characteristics and task performance of the total sample. SD: standard deviation; n:number of participants; PCLO+: PCLO risk allele carriers; PCLO−: PCLO non-risk allele carries; A: Amsterdam; L: Leiden; G:Groningen; MDD: major depressive disorder; HC: healthy controls; IDS: Inventory of Depressive Symptomatology; MADRS: Montgomery-Åsberg Depression Rating Scale; SSRI: Selective Serotonin Reuptake Inhibitors; p: proportion correct answers; neg: negative (words); pos: positive (words); neu: neutral (words); sec: seconds; rt: response time.Mean proportion correct and response times for encoding (subsequent hits) and recognition (hits, false alarms, correct rejection) indices. Correct RECognition (CREC): correct recognition of a previously encoded word; False Alarm (FA): incorrect indication of a newly presented word as a previously encoded word; Correct REJection (CREJ): correct recognition of a newly presented word as a new word; Subsequent Correct Recognition (SCR): consists of a word, presented during the encoding phase, that is correctly recognized during the subsequent recognition phase.