Abstract:
:We investigated the effect of correlation in background noise on the ability of participants to detect a kinaesthetic target on the index fingers of their hands. Participants had to judge whether the target (a smoothed ramp with quarter-sine onset and offset), was on the left or right finger (experiments 1 and 2). These targets were embedded in noise generated by pseudo-random up-down movements of both the left and right fingers. Positive correlation between the noise on the left and right fingers aided discrimination of the target signal relative to when the noise was uncorrelated. However, this benefit of positive correlation was subject to temporal limitations and diminished with increasing lag between the noise on the fingers (experiment 2). Tests of explicit detection of correlation in kinaesthetic noise (experiment 3) showed a similar pattern, with detection of correlation decreasing with the temporal lag between the noise on the fingers. The results suggest that kinaesthetic signal detection involves sensory integration across the fingers within a limited temporal window.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Roberts RD,Humphreys GW,Wing AMdoi
10.1007/s00221-005-2273-2keywords:
subject
Has Abstractpub_date
2005-08-01 00:00:00pages
529-40issue
4eissn
0014-4819issn
1432-1106journal_volume
164pub_type
杂志文章abstract::Gait is recognized as a key item related to mental function. Anomalous gait in psychotic individuals has been described for the lower extremities, whereas irregularities for upper body dynamics are not described, explained or verified with unbiased methods. Reduced walking velocity and increased somatic tension define...
journal_title:Experimental brain research
pub_type: 临床试验,杂志文章
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pub_type: 更正并重新发布的文章,杂志文章
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pub_type: 临床试验,杂志文章
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pub_type: 杂志文章
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doi:10.1007/s00221-002-1303-6
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pub_type: 杂志文章
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pub_type: 杂志文章
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pub_type: 杂志文章
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