Cerebral activation and lateralization due to the cognition of a various driving speed difference: An fMRI study

Hyung Sik Kim, Mi Hyun Choi, Hee Jeong Yoon, Hyun Joo Kim, Ul Ho Jeoung, Sung Jun Park, Dae Woon Lim, Soon Cheol Chung, Beob Yi Lee

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

This study investigated the changes of cerebral activation and lateralization due to the cognition of three driving speeds in comparison to a reference driving speed using functional magnetic resonance imaging fMRI. A driving video as a visual stimulation source was recorded with four different driving speeds in a real driving situation. The experiment consisted of three blocks and each block included a one-minute control phase and a one-minute stimulation phase. The activation area and the lateralization index were analyzed by subtracting high speed data from low speed data. Such areas as occipital, parietal and frontal lobes, which is related to visual cognition, high order visual and spatial attention (or vigilance), were activated due to the cognition of various driving speed differences. As the driving speed difference increased, the activation area increased in the areas related to spatial attention (or vigilance), such as the frontal lobe, however, changes of neuronal activation in the occipital and parietal lobes were inconsistent. As the driving speed difference increased, the absolute value of cerebral lateralization decreased. These results may provide some basic data for elucidating the brain-function mechanism related to the cognition of a various driving speed difference based on a realistic visual stimulation.

Original languageEnglish
Pages (from-to)1133-1139
Number of pages7
JournalBio-Medical Materials and Engineering
Volume24
Issue number1
DOIs
StatePublished - 2014

Keywords

  • Cerebral activation
  • Cerebral lateralization
  • Driving speed difference
  • fMRI

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