Walter J. Doherty & Ahrvind J. Thadhani (1982)
IBM Technical Report GE20-0752-0.
Abstract. The IBM study behind the Doherty Threshold — that system response times below ~400 ms produce qualitatively different user behaviour (productivity rises, engagement deepens) compared to multi-second response. The most-cited justification for sub-second performance budgets in interactive software.
Tags: response-time doherty attention foundational