Right hemispheric activation on chronognosia: a preliminary study by rheoencephalography.
Using an impedance plethysmography technique, we measured the regional cerebral blood flow variation at rest and during time period estimation in 21 normal volunteers. A significant increase was observed in the right hemisphere. The overestimators without internal counting show a significant increase in the right frontal region. The underestimators without internal counting display no right frontal modification but their right temporo-occipital regions show a significant increase.
D000328:Adult; D001931:Brain Mapping; D002560:Cerebrovascular Circulation; D004292:Dominance, Cerebral / Q000502:physiology*; D005625:Frontal Lobe / Q000502:physiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009778:Occipital Lobe / Q000502:physiology; D010992:Plethysmography, Impedance; D013702:Temporal Lobe / Q000502:physiology; D013998:Time Perception / Q000502:physiology*