手法を比較

	ストップシグナル反応時間課題 (Stop-Signal Reaction Time Task)	Drift Diffusion Model
分野	心理学	心理学
系統	Hypothesis test	Hypothesis test
提唱年	1984	1978
提唱者	Gordon Logan and Wiliam Cowan	Roger Ratcliff
種類	Behavioral task	Cognitive process model
原典	Logan, G. D., Cowan, W. B., & Davis, K. A. (1984). On the ability to inhibit simple and choice reaction time responses: A model and a method. Journal of Experimental Psychology: Human Perception and Performance, 10(2), 276-291.	Ratcliff, R. (1978). A theory of memory retrieval. Psychological Review, 85(2), 59-108.
別名	SSRT, Stop Task, Response Inhibition Task	DDM, Brownian Motion Model, Sequential Sampling Model
関連	1	1
概要	The Stop-Signal Reaction Time (SSRT) task is a behavioral measure of response inhibition and executive control. Participants make rapid responses to go signals but must cancel responses when an occasional stop signal appears. By analyzing how successfully they inhibit responses and estimating the latency of inhibition (Stop-Signal Reaction Time), researchers measure the speed and efficiency of the neural inhibitory processes that enable self-control, impulse control, and behavioral flexibility.	The Drift Diffusion Model (DDM) is a mathematical framework for understanding rapid binary decision-making by modeling the accumulation of evidence over time as a random walk with drift. Developed by Roger Ratcliff in the 1970s, it predicts both choice probabilities and response time distributions, providing insight into the cognitive processes underlying decisions in perceptual discrimination, recognition memory, and choice tasks.