Hemispheric asymmetry in holistic processing of words

ABSTRACT

Holistic processing has been regarded as a hallmark of face perception, indicating the automatic and obligatory tendency of the visual system to process all face parts as a perceptual unit rather than in isolation. Studies involving lateralized stimulus presentation suggest that the right hemisphere dominates holistic face processing. Holistic processing can also be shown with other categories such as words and thus it is not specific to faces or face-like expertize. Here, we used divided visual field presentation to investigate the possibly different contributions of the two hemispheres for holistic word processing. Observers performed same/different judgment on the cued parts of two sequentially presented words in the complete composite paradigm. Our data indicate a right hemisphere specialization for holistic word processing. Thus, these markers of expert object recognition are domain general.

KEYWORDS:

• Complete composite task
• holistic word processing
• divided visual field paradigm
• hemispheric asymmetries
• Portuguese words

Disclosure statement

No potential conflict of interest was reported by the authors.

Notes

1 Available at www.pstnet.com/eprime.

Additional information

Funding

The work presented in this manuscript was supported by the Research Center for Psychological Science (CICPSI) Universidade de Lisboa. Financial sources had no involvement in the research.