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The analysis of response-time data in this article is based on behavioral data reported by Matsuzaka, Piccard, and Strick (J Neurophysiol 97:1819–1832, 2007)
Incidental sequence learning has been conceptualized as involving a shift from stimulus-based to plan-based performance (e.g., Tubauet et al. in Journal of Experimental Psychology: General 136:43–63, 2007). We analyzed the response time (RT) data of two macaque monkeys that were trained for thousands of trials on a sequential reaching task in a study by Matsuzaka et al. in Journal of Neurophysiology 97, 1819–1832 (2007). The animals learned to respond predictively to a repeating 3-element sequence. During a transitional period, RT distributions were bimodal, indicating that the animals alternated between two processing modes. An analysis of trial-to-trial mode shifting probabilities provided preliminary evidence for a strategic process.
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- Response-mode shifts during sequence learning of macaque monkeys
F. Gregory Ashby
Peter L. Strick