This paper presents the results of an instrumental analysis of four fundamental frequency (F0) attributes (range, phrase or sentence final rises, phrase or sentence final falls and non-final variability) in the spontaneous speech output of two matched groups of adult, right-handed, Francophone subjects. Subjects with left temporal lesion produce lower values for all four attributes when compared to subjects with right temporal lesion. Direct comparison of these results does not, however, produce statistically significant results because of the high degree of inter-speaker variability in both groups. This suggests that individual speaker characteristics may still dominate F0 production even when subjects suffer focal unilateral lesion.