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Hemispheric differences in processing handwritten cursive.
Joseph B Hellige1, Maheen M Adamson
1Department of Psychology, University of Southern California, Los Angeles, CA 90089-1061, USA. hellige@usc.edu
Brain and Language
|December 13, 2006
Summary
The left hemisphere processes written English words more accurately than the right. However, the right hemisphere shows greater involvement in reading handwritten cursive, likely due to its visual complexity.
Area of Science:
- Cognitive Neuroscience
- Psycholinguistics
- Visual Perception
Background:
- Hemispheric asymmetry influences visual processing.
- Reading involves distinct neural pathways for different script types.
Purpose of the Study:
- To investigate hemispheric asymmetry in processing printed versus handwritten cursive non-words.
- To explore differences in error patterns between visual fields and script types.
Main Methods:
- Participants identified consonant-vowel-consonant (CVC) non-words presented to the right visual field/left hemisphere (RVF/LH) and left visual field/right hemisphere (LVF/RH).
- Stimuli included standard print, standard cursive, and gapped cursive.
- Error rates and types were analyzed for each condition and visual field.
Main Results:
- Fewer errors occurred in the RVF/LH compared to the LVF/RH across all conditions.
- The RVF/LH advantage was smaller for cursive (both types) than for print.
- The right hemisphere showed a greater contribution to cursive identification, with fewer last-letter errors compared to print, especially in the LVF/RH.
Conclusions:
- Hemispheric asymmetry in visual word recognition is modulated by script type.
- Handwritten cursive engages the right hemisphere more than print, potentially due to increased visual complexity and distinct processing demands.
- Qualitative differences in processing cursive versus print impact error patterns and hemispheric involvement.
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