| Abstract | Two experiments (N = 18, 12) use a procedure developed by R. Carter & J. Bradshaw (see LLBA 20/1, 8601730) to examine the role of syllable structure in speech production. In the procedure, Subjects exchange phonological segments in corresponding positions of a pair of visually presented words or nonwords & produce the resulting words or nonwords as quickly as possible. Carter & Bradshaw have shown that the pattern of latencies mirrors that of frequencies of exchange errors in natural speech. Experiment 1 shows that initial consonant exchanges are promoted by phonetic similarity of the exchanging consonantss & they reflect a bias for producing real words. With these influences controlled, experiment 2 replicates & extends the finding of Carter & Bradshaw that initial consonant exchanges are made more rapidly than final consonant exchanges. The discussion relates the latency difference between these conditions to a difference in the "cohesiveness" of initial & final conss with their vowel. In particular, in experiment 2, more than 33% of errors made on final-cons or vowel exchanges are exchanges of the whole syllable rhyme (VC), whereas just 10% of errors made on initial cons or vowel exchanges are exchanges of the initial CV of the word. Various explanations for the difference in cohesiveness are examined in post hoc analyses. |