HEMISPHERIC SYMMETRIES IN THE IDENTIFICATION OF BAND-PASS FILTERED LETTERS - REPLY

Christman, Kitterle, and Niebauer (1997) have examined the hypothesis that the two cerebral hemispheres are specialized for processing diffe rent ranges of spatial frequency. Their two experiments partially repl icated an experiment of Peterzell, Harvey, and Hardyck (1989), who use d Sergent's (1982) letter identification paradigm with spatial-frequen cy band-pass filtered letters as stimuli. We acknowledge the unusual s trengths of Christman et al.'s experiments, but argue that the results support the original conclusion of Peterzell et al.: The results are not attributable to hemispheric asymmetries in spatial frequency proce ssing.