Consistency of handedness, regardless of direction, predicts baseline memory accuracy and potential for memory enhancement.
Research has shown that consistently right-handed individuals have poorer memory than do inconsistently right- or left-handed individuals under baseline conditions but more reliably exhibit enhanced memory retrieval after making a series of saccadic eye movements. From this it could be that consistent versus inconsistent handedness, regardless of left/right direction, is an important individual difference factor in memory. Or, more specifically, it could be the presence or absence of consistent right-handedness that matters for memory. To resolve this ambiguity, we compared consistent and inconsistent left- and right-handers on associative recognition tests taken after saccades or a no-saccades control activity. Consistent-handers exhibited poorer memory than did inconsistent-handers following the control activity, and saccades enhanced retrieval for consistent-handers only. Saccades impaired retrieval for inconsistent-handers. None of these effects depended on left/right direction. Hence, this study establishes handedness consistency, regardless of direction, as an important individual difference factor in memory. (PsycINFO Database Record (c) 2011 APA, all rights reserved).[1]References
- Consistency of handedness, regardless of direction, predicts baseline memory accuracy and potential for memory enhancement. Lyle, K.B., Hanaver-Torrez, S.D., Hackländer, R.P., Edlin, J.M. J. Exp. Psychol. Learn. Mem. Cogn (2011) [Pubmed]
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