Suppression of brain activity related to a car-following task with an auditory task: An fMRI study

Uchiyama, Yuji; Toyoda, Hiroshi; Sakai, Hiroyuki; Shin, Duk; Ebe, Koji; Sadato, Norihiro

doi:10.1016/j.trf.2011.11.002

Cited by 38 publications

(60 citation statements)

References 45 publications

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“…Recently many studies have been carried out to explore driving-related cerebral activation based on fMRI [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. Most previous studies focused on investigating basic cerebral mechanisms based on identified brain areas activated at the time of driving by comparing the rest state with driving state [1,[5][6][7][8]12,14,15,19,20]while few studies paid attention to cerebral neurology associated with driving speed cognition, except for Calhoun et al [1]'s study.…”

Section: Introductionmentioning

confidence: 99%

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

Kim

Choi

Yoon

et al. 2014

Bio-Medical Materials and Engineering

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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 brainfunction mechanism related to the cognition of a various driving speed difference based on a realistic visual stimulation.

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Section: Introductionmentioning

confidence: 99%

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

Kim

Choi

Yoon

et al. 2014

Bio-Medical Materials and Engineering

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“…Cerebellar activation during car-driving tasks has been frequently reported in previous neuroimaging studies2223242526272829 (see also ref. 30 for review), although there is large variation in the reported cerebral activation patterns.…”

Section: Discussionmentioning

confidence: 73%

“…Extensive bilateral cerebellar activation has also been reported in studies where input devices for the vehicle control were operated with the right hand only262728. In addition, according to a study of human cerebellar sensorimotor representations by Grodd et al 31,.…”

Section: Discussionmentioning

confidence: 88%

Greater cerebellar gray matter volume in car drivers: an exploratory voxel-based morphometry study

Sakai

Ando

Sadato

et al. 2017

Sci Rep

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Previous functional neuroimaging studies have identified multiple brain areas associated with distinct aspects of car driving in simulated traffic environments. Few studies, however, have examined brain morphology associated with everyday car-driving experience in real traffic. Thus, the aim of the current study was to identify gray matter volume differences between drivers and non-drivers. We collected T1-weighted structural brain images from 73 healthy young adults (36 drivers and 37 non-drivers). We performed a whole-brain voxel-based morphometry analysis to examine between-group differences in regional gray matter volume. Compared with non-drivers, drivers showed significantly greater gray matter volume in the left cerebellar hemisphere, which has been associated with cognitive rather than motor functioning. In contrast, we found no brain areas with significantly greater gray matter volume in non-drivers compared with drivers. Our findings indicate that experience with everyday car driving in real traffic is associated with greater gray matter volume in the left cerebellar hemisphere. This brain area may be involved in abilities that are critical for driving a car, but are not commonly or frequently used during other daily activities.

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“…revealed changes in brain activation, such as reduced activity in driving networks when driving while performing a sentence comprehension task (16,17). Similarly, under more challenging conditions, driving while listening to someone speak can induce a decrease in driving accuracy (16), reminiscent of the decrease in performance in cross-modal tasks when stimuli are incongruent (18).…”

Section: Discussionmentioning

confidence: 99%

Functional split brain in a driving/listening paradigm

Sasai

Boly

Mensen

et al. 2016

Proc. Natl. Acad. Sci. U.S.A.

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We often engage in two concurrent but unrelated activities, such as driving on a quiet road while listening to the radio. When we do so, does our brain split into functionally distinct entities? To address this question, we imaged brain activity with fMRI in experienced drivers engaged in a driving simulator while listening either to global positioning system instructions (integrated task) or to a radio show (split task). We found that, compared with the integrated task, the split task was characterized by reduced multivariate functional connectivity between the driving and listening networks. Furthermore, the integrated information content of the two networks, predicting their joint dynamics above and beyond their independent dynamics, was high in the integrated task and zero in the split task. Finally, individual subjects' ability to switch between high and low information integration predicted their driving performance across integrated and split tasks. This study raises the possibility that under certain conditions of daily life, a single brain may support two independent functional streams, a "functional split brain" similar to what is observed in patients with an anatomical split.remarkable finding in neuroscience is that after the two cerebral hemispheres are disconnected to reduce epileptic seizures through the surgical sectioning of around 200 million connections, patients continue to behave in a largely normal manner (1). Just as remarkably, subsequent experiments have shown that after the splitbrain operation, two separate streams of consciousness coexist within a single brain, one per hemisphere (2, 3). For example, in many such studies, each hemisphere can successfully perform various cognitive tasks, including binary decisions (4) or visual attentional search (5), independent of the other, as well as report on what it experiences. Intriguingly, anatomical split brains can even perform better than controls in some dual-task conditions (6, 7). On the other hand, the integration of information between the two hemispheres breaks down (4), such that one hemisphere is not conscious of what the other one is perceiving and thinking (8). Recent studies have provided neurophysiological evidence consistent with the anatomical disconnection, such as a decrease in fMRI functional connectivity between the left and right hemispheres in human patients with a split brain and in animals that underwent surgical callosotomy (9-11).In the present study, we asked whether it is possible to obtain a functional split, rather than an anatomical one, in the healthy human brain. During most situations of daily life, our brain functions as a unitary system, which is usually a good thing. Consider listening to global positioning system (GPS) instructions when driving in a foreign city: To arrive at the right destination, the auditory instructions should be heard by the same system that sees the visual input and decides on the course of action. Even so, most of us are familiar with some situations in which we seem to undergo a f...

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Suppression of brain activity related to a car-following task with an auditory task: An fMRI study

Cited by 38 publications

References 45 publications

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

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

Greater cerebellar gray matter volume in car drivers: an exploratory voxel-based morphometry study

Functional split brain in a driving/listening paradigm

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