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. Author manuscript; available in PMC: 2018 Oct 23.
Published in final edited form as: Phys Life Rev. 2008 Dec 14;6(2):53–84. doi: 10.1016/j.plrev.2008.12.001

Figure 1.

Figure 1

Practice-induced improvements in visual search (Karni & Sagi, 1993). All data are from a single subject. Top: On each session (spaced 1–3 days apart), subjects showed significant improvement in the amount of exposure time (SOA) necessary to discriminate between two targets presented among distrators. Separate curves represent performance during different sessions. The leftward shift of the curves with practice indicates that performance of the task required progressively shorter presentations to achieve a given accuracy level. Between sessions, performance remained relatively constant, and was unchanged 32 months after the final training session. Bottom: Exposure time (SOA) necessary to reach threshold performance (~80% correct) as a function of training session.