| Abstract: | The present study is concerned with comparing group mean data between groups with individual performance within groups in dichotic listening (DL). It is argued that only comparing mean ear performance in dichotic listening between groups may obscure important individual differences within groups in DL performance. In the present study we compared between group vs. within group performance in four groups of subjects (male and female, right- and left-handers). The stimuli were 66 trials of consonant-vowel combinations with the six stop-consonants and the vowels a and u. The results showed a group mean right ear advantage for consonants in the two right-handed groups, and a left-ear advantage in the two let-handed groups. The analysis of the individual distributions within each group, however, showed clear differences between the male and female groups. Generally, though, only the male right-handed group revealed enough homogeneity within the group to warrant the conclusion that the group mean REA reflects a left hemisphere specialization for speech perception. |
