Accelerated time experience after left frontal cortex lesion

We report a patient, BW, with an accelerated time experience as a result of a glioblastoma in his left superior prefrontal cortex, He experienced external events as seeming to occur at a much faster rate than before the lesion, but he showed normal awareness of time, place, and identity. He displayed behavioral slowness, some aphasia, right hemispatial neglect, and other neuropsychological problems typical of left frontal damage, When asked to produce 60 s durations, BW's mean production was extremely long (286.0 s), This finding is consistent with the notion that subjective duration had decreased relative to objective duration, Several explanations for the findings are discussed, including the possibility that the rate of an internal pacemaker was greatly slowed.