Proceedings of the Annual Meeting of the Cognitive Science Society

Recent work with brain-damaged pationts has provided evidence for a tentative neuroanatomical localization of mental image generatino in the posterior left hemisphere. This evidence will be briefly summarized and critiqued. And a new test of the localization, using normal subjects, will be presented. When mental images of stimuli were used a templates to facilitate a visual discrimination, the effect of imagery was greater for stimuli presented in the right visual field (left hemisphere) than in the left visual field (right hemisphere). This result is discussed in relation to earlier claims about the hemisphericity of imagery.