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Brain Sci. 2012, 2(1), 22-32; doi:10.3390/brainsci2010022

Implicit Recognition Based on Lateralized Perceptual Fluency

, 2
 and 1,*
Received: 20 December 2011; in revised form: 21 January 2012 / Accepted: 31 January 2012 / Published: 6 February 2012
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Abstract: In some circumstances, accurate recognition of repeated images in an explicit memory test is driven by implicit memory. We propose that this “implicit recognition” results from perceptual fluency that influences responding without awareness of memory retrieval. Here we examined whether recognition would vary if images appeared in the same or different visual hemifield during learning and testing. Kaleidoscope images were briefly presented left or right of fixation during divided-attention encoding. Presentation in the same visual hemifield at test produced higher recognition accuracy than presentation in the opposite visual hemifield, but only for guess responses. These correct guesses likely reflect a contribution from implicit recognition, given that when the stimulated visual hemifield was the same at study and test, recognition accuracy was higher for guess responses than for responses with any level of confidence. The dramatic difference in guessing accuracy as a function of lateralized perceptual overlap between study and test suggests that implicit recognition arises from memory storage in visual cortical networks that mediate repetition-induced fluency increments.
Keywords: implicit memory; recognition; perceptual priming implicit memory; recognition; perceptual priming
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Vargas, I.M.; Voss, J.L.; Paller, K.A. Implicit Recognition Based on Lateralized Perceptual Fluency. Brain Sci. 2012, 2, 22-32.

AMA Style

Vargas IM, Voss JL, Paller KA. Implicit Recognition Based on Lateralized Perceptual Fluency. Brain Sciences. 2012; 2(1):22-32.

Chicago/Turabian Style

Vargas, Iliana M.; Voss, Joel L.; Paller, Ken A. 2012. "Implicit Recognition Based on Lateralized Perceptual Fluency." Brain Sci. 2, no. 1: 22-32.

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