Cerebral correlates of alerting, orienting and reorienting of visuospatial attention: an event-related fMRI study

Thiel, Christiane M.; Zilles, Karl; Fink, Gereon R.

doi:10.1016/j.neuroimage.2003.08.044

Cited by 278 publications

(246 citation statements)

References 52 publications

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“…Although reaction times of the initial orientation to validly cued targets were significantly increased at 9 a.m., there was no significant asymmetry between leftand right-sided correctly cued targets and attentional orienting was not affected by different levels of arousal, which is consistent with our preceding hypothesis. This finding is also in line with event-related f MRI studies (Corbetta et al, 2000;Thiel et al, 2004), which identified different neuronal networks subserving attentional aspects of alerting, orienting, …”

Section: Discussionsupporting

confidence: 89%

“…Accordingly, we expect the dorsal pathway to be more affected by low arousal than the ventral pathway, thus resulting in a more pronounced attentional asymmetry effect within the applied covert attention paradigm in peripersonal space. Because the posterior parietal cortex is crucial in redirecting attention to previously unattended locations (Petersen et al, 1989;Posner et al, 1984;Thiel et al, 2004), we also expect a stronger asymmetry effect for invalidly cued targets.…”

Section: Introductionmentioning

confidence: 93%

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Low arousal modulates visuospatial attention in three-dimensional virtual space

Heber

Valvoda

Kuhlen

et al. 2008

J. Inter. Neuropsych. Soc.

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Clinical, experimental, and functional imaging studies suggest overlapping neuronal networks and functional interactions of alertness and visuospatial attention within the right hemisphere of the brain. To examine the interaction of arousal and visuospatial attention in peripersonal and extrapersonal virtual space, we tested 20 healthy male adults during 24 hr of sleep deprivation at four points during the night (9 p.m., 1 a.m., 5 a.m., and 9 a.m.). The main finding concerning covert orienting in a virtual environment is a highly significant slowing of reorientation toward the left visual hemifield in extrapersonal space due to decreased arousal. The results provide additional evidence for the proposed anatomical and functional overlap of the two attentional systems and indicate a modulation of visuospatial attention by the level of arousal in extrapersonal space. (JINS, 2008, 14, 309-317.)

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Section: Discussionsupporting

confidence: 89%

Section: Introductionmentioning

confidence: 93%

Low arousal modulates visuospatial attention in three-dimensional virtual space

Heber

Valvoda

Kuhlen

et al. 2008

J. Inter. Neuropsych. Soc.

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“…4 Further, the equivalent response times between the ADHD-CT and healthy participant groups suggests that the known methodological difference between block and event-related fMRI designs may not be an interpretive issue for these data. 32 Nevertheless, we expected the ADHD-CT children to make more errors on the mental rotation task than control children, given the fact that spatial working memory is a key cognitive domain which is impaired in ADHD-CT. 12 In our previous fMRI study of mental rotation, adolescents with ADHD-CT indeed showed poorer performance (more errors) than controls. 3 In this current study, children with ADHD-CT did show the expected trend, making 11% more errors than the controls on average.…”

Section: Discussionmentioning

confidence: 99%

Right parietal dysfunction in children with attention deficit hyperactivity disorder, combined type: a functional MRI study

et al. 2007

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Attention deficit hyperactivity disorder, combined type (ADHD-CT) is associated with spatial working memory deficits. These deficits are known to be subserved by dysfunction of neural circuits involving right prefrontal, striatal and parietal brain regions. This study determines whether decreased right prefrontal, striatal and parietal activation with a mental rotation task shown in adolescents with ADHD-CT is also evident in children with ADHD-CT. A crosssectional study of 12 pre-pubertal, right-handed, 8-12-year-old boys with ADHD-CT and 12 prepubertal, right-handed, performance IQ-matched, 8-12-year-old healthy boys, recruited from local primary schools, was completed. Participants underwent functional magnetic resonance imaging while performing a mental rotation task that requires spatial working memory. The two groups did not differ in their accuracy or response times for the mental rotation task. The ADHD-CT group showed significantly less activation in right parieto-occipital areas (cuneus and precuneus, BA 19), the right inferior parietal lobe (BA 40) and the right caudate nucleus. Our findings with a child cohort confirm previous reports of right striatal-parietal dysfunction in adolescents with ADHD-CT. This dysfunction suggests a widespread maturational deficit that may be developmental stage independent.

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“…The intraparietal sulcus was proposed to form together with the frontal eye field the dorsal attentional network, which controls the endogenous allocation and maintenance of visuospatial attention (Corbetta and Shulman, 2002). A separate, right ventral hemispheric network involving the temporoparietal junction was shown to sustain visual target detection independently of the hemifield and to carry left and right hemifield representation (Corbetta and Shulman, 2002;Thiel et al, 2004;Shulman et al, 2010). The comparison of our data with these studies strongly suggests that PA exposure affects neural processing within the right-lateralized inferior parietal network centered on the inferior parietal lobule, which governs shifts of spatial attention and target detection, and not within the dorsal frontoparietal network, which controls the allocation of endogenous attention (Shulman et al, 2010).…”

Section: Parietal Involvement In Pamentioning

confidence: 99%

“…Second, the effect of PA on visuospatial representations within the inferior parietal lobule cannot be simply explained by a leftward shift, as observed in the afteraffect. The right, but not the left, inferior parietal lobule is known to carry left and right hemifield representation (Corbetta and Shulman, 2002;Thiel et al, 2004;Shulman et al, 2010) and to have a strong functional interaction with retinotopic visual areas in either hemisphere (Ruff et al, 2008). A leftward shift may bring the representation of right stimulus within the left (representational) space but cannot be expected to change the competence of the right inferior parietal lobule for both the right and left space.…”

Section: Mechanisms Underlying Pa-related Effectsmentioning

confidence: 99%

Prismatic Adaptation Changes Visuospatial Representation in the Inferior Parietal Lobule

2014

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Prismatic adaptation has been shown to induce a realignment of visuoproprioceptive representations and to involve parietocerebellar networks. We have investigated in humans how far other types of functions known to involve the parietal cortex are influenced by a brief exposure to prismatic adaptation. Normal subjects underwent an fMRI evaluation before and after a brief session of prismatic adaptation using rightward deviating prisms for one group or after an equivalent session using plain glasses for the other group. Activation patterns to three tasks were analyzed: (1) visual detection; (2) visuospatial short-term memory; and (3) verbal short-term memory. The prismatic adaptation-related changes were found bilaterally in the inferior parietal lobule when prisms, but not plain glasses, were used. This effect was driven by selective changes during the visual detection task: an increase in neural activity was induced on the left and a decrease on the right parietal side after prismatic adaptation. Comparison of activation patterns after prismatic adaptation on the visual detection task demonstrated a significant increase of the ipsilateral field representation in the left inferior parietal lobule and a significant decrease in the right inferior parietal lobule. In conclusion, a brief exposure to prismatic adaptation modulates differently left and right parietal activation during visual detection but not during short-term memory. Furthermore, the visuospatial representation within the inferior parietal lobule changes, with a decrease of the ipsilateral hemifield representation on the right and increase on the left side, suggesting thus a left hemispheric dominance.

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Cerebral correlates of alerting, orienting and reorienting of visuospatial attention: an event-related fMRI study

Cited by 278 publications

References 52 publications

Low arousal modulates visuospatial attention in three-dimensional virtual space

Low arousal modulates visuospatial attention in three-dimensional virtual space

Right parietal dysfunction in children with attention deficit hyperactivity disorder, combined type: a functional MRI study

Prismatic Adaptation Changes Visuospatial Representation in the Inferior Parietal Lobule

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