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Dissociable endogenous and exogenous attention in disorders of consciousness

Overview of attention for article published in NeuroImage: Clinical, January 2013
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About this Attention Score

  • In the top 5% of all research outputs scored by Altmetric
  • One of the highest-scoring outputs from this source (#8 of 1,304)
  • High Attention Score compared to outputs of the same age (98th percentile)

Mentioned by

8 news outlets
3 blogs
28 tweeters
2 Facebook pages
11 Google+ users


47 Dimensions

Readers on

102 Mendeley
Dissociable endogenous and exogenous attention in disorders of consciousness
Published in
NeuroImage: Clinical, January 2013
DOI 10.1016/j.nicl.2013.10.008
Pubmed ID

Srivas Chennu, Paola Finoia, Evelyn Kamau, Martin M. Monti, Judith Allanson, John D. Pickard, Adrian M. Owen, Tristan A. Bekinschtein


Recent research suggests that despite the seeming inability of patients in vegetative and minimally conscious states to generate consistent behaviour, some might possess covert awareness detectable with functional neuroimaging. These findings motivate further research into the cognitive mechanisms that might support the existence of consciousness in these states of profound neurological dysfunction. One of the key questions in this regard relates to the nature and capabilities of attention in patients, known to be related to but distinct from consciousness. Previous assays of the electroencephalographic P300 marker of attention have demonstrated its presence and potential clinical value. Here we analysed data from 21 patients and 8 healthy volunteers collected during an experimental task designed to engender exogenous or endogenous attention, indexed by the P3a and P3b components, respectively, in response to a pair of word stimuli presented amongst distractors. Remarkably, we found that the early, bottom-up P3a and the late, top-down P3b could in fact be dissociated in a patient who fitted the behavioural criteria for the vegetative state. In juxtaposition with healthy volunteers, the patient's responses suggested the presence of a relatively high level of attentional abilities despite the absence of any behavioural indications thereof. Furthermore, we found independent evidence of covert command following in the patient, as measured by functional neuroimaging during tennis imagery. Three other minimally conscious patients evidenced non-discriminatory bottom-up orienting, but no top-down engagement of selective attentional control. Our findings present a persuasive case for dissociable attentional processing in behaviourally unresponsive patients, adding to our understanding of the possible levels and applications of consequent conscious awareness.

Twitter Demographics

The data shown below were collected from the profiles of 28 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 102 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 3 3%
Canada 2 2%
United Kingdom 1 <1%
France 1 <1%
Unknown 95 93%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 20 20%
Researcher 20 20%
Student > Master 14 14%
Student > Bachelor 12 12%
Student > Postgraduate 7 7%
Other 29 28%
Readers by discipline Count As %
Psychology 31 30%
Neuroscience 17 17%
Agricultural and Biological Sciences 15 15%
Unspecified 12 12%
Medicine and Dentistry 8 8%
Other 19 19%

Attention Score in Context

This research output has an Altmetric Attention Score of 110. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 29 January 2015.
All research outputs
of 12,696,096 outputs
Outputs from NeuroImage: Clinical
of 1,304 outputs
Outputs of similar age
of 178,098 outputs
Outputs of similar age from NeuroImage: Clinical
of 1 outputs
Altmetric has tracked 12,696,096 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 99th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 1,304 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 6.5. This one has done particularly well, scoring higher than 99% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 178,098 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 98% of its contemporaries.
We're also able to compare this research output to 1 others from the same source and published within six weeks on either side of this one. This one has scored higher than all of them