Operator performance on a chord keyboard

Abstract

In comparing keyboards for recording data, what are the advantages to be found in making "chords," employing strikes with a number of fingers at one time, via motor reactions as opposed to those calling for greater choice? Lights representing patterns for operators to make with their fingers on keyboards were flashed in different combinations before 6 Ss. Ability to record them with 1 hand was compared with 2 hand performance. Reaction time for the various chords presented was compared. "… the results show that motor system constraints are predominant over choice reaction time in determining speed on a chord keyboard." From Psyc Abstracts 36:05:5CD03R. (PsycInfo Database Record (c) 2025 APA, all rights reserved)