title: Some effects of an ACTH 4-9 analog (Org 2766) on human performance.
abstract: The effects (on human beings) of the ACTH analog Org 2766 were investigated for a range of performance tests: complicated serial reaction task, running memory span, verbal learning and non-verbal mental ability tests (closure flexibility and non-verbal abstraction). Subjective ratings on feelings were taken and heart rate was measured. Only the 30-min reaction task produced significant drug effects. In this task performance tends to deteriorate as a function of time on task. During the test period there is a gradual increase in the number of lapses in performance due to moments of inattention. This deterioration is counteracted by the ACTH 4-9 analog, a result also found in previous study using ACTH 4-10 (Org OI63). Thus ACTH fragments which are devoid of endocrine effects seem to have a beneficial effect on goal-directed motivation oriented on the requirements of the task.
mesh_terms: D000324:Adrenocorticotropic Hormone / Q000031:analogs & derivatives* / Q000494:pharmacology; D004644:Emotions / Q000187:drug effects; D005260:Female; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D008297:Male; D008568:Memory / Q000187:drug effects*; D009042:Motivation / Q000187:drug effects; D011581:Psychological Tests; D011930:Reaction Time / Q000187:drug effects*; D013997:Time Factors; D014706:Verbal Learning / Q000187:drug effects*
chemical_list: D000324:Adrenocorticotropic Hormone