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. Author manuscript; available in PMC: 2016 Dec 1.
Published in final edited form as: J Exp Psychol Hum Percept Perform. 2015 Aug 31;41(6):1515–1523. doi: 10.1037/a0039653

Figure 1.

Figure 1

The figure shows a representation of the diffusion model. The top panel represents simulated paths with drift rate v, boundary separation a, and starting point z. The bottom panel represents the three components of a response time: Encoding time (u), decision time (d), and response output (w) time. The non-decision component is the sum of u and w with mean = Ter and with variability represented by a uniform distribution with range st.