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. Author manuscript; available in PMC: 2018 Aug 1.
Published in final edited form as: J Comp Psychol. 2017 Mar 23;131(3):231–245. doi: 10.1037/com0000065

Figure 5. Human reaction times (log-transformed) over successive trials.

Figure 5

Shaded areas represent 99% credible interval. Top Row. Log reaction times for pairs that included F and G for distance 1 through 5. Participants were much slower than monkeys, but reaction times steadily improved over the course of the experiment. Bottom Row. Log reaction times for pairs composed of items A through E. Reaction times to pairs that included item A sped up most during learning, whereas pairs closer to the “middle” of the list (such as DE) sped up very little.