Imageability does not interact with visual field in lateral word recognition with oral report

Area of Science:

• Cognitive Neuroscience
• Psycholinguistics

Background:

• The right hemisphere (RH) imageability hypothesis proposes a specialized role for the right hemisphere in processing highly imageable words.
• Previous studies have suggested evidence supporting this hypothesis, influencing our understanding of hemispheric language processing.

Purpose of the Study:

• To empirically test the RH imageability hypothesis using lateral tachistoscopic experiments.
• To determine if performance asymmetry in word processing tasks correlates with word imageability.

Main Methods:

• Four lateral tachistoscopic experiments were conducted.
• Participants performed a lateral recognition task with oral reporting of word stimuli.

Main Results:

• The predicted variation in performance asymmetry based on word imageability was not observed.
• Findings indicate that previous evidence supporting the RH imageability hypothesis may be flawed due to artifactual grounds.

Conclusions:

• The RH imageability hypothesis, as previously supported, requires re-evaluation.
• The study casts doubt on the selective word processing abilities of the right hemisphere based on imageability.