Response speed advantage for vision does not extend to touch in early deaf adults

@article{Heimler2014ResponseSA,
  title={Response speed advantage for vision does not extend to touch in early deaf adults},
  author={Benedetta Heimler and Francesco Pavani},
  journal={Experimental Brain Research},
  year={2014},
  volume={232},
  pages={1335-1341}
}
Early deaf adults typically respond faster than hearing controls when performing a speeded simple detection on visual targets. Whether this response time advantage can generalise to another intact modality (touch) or it is instead specific to visual processing remained unexplored. We tested eight early deaf adults and twelve hearing controls in a simple detection task, with visual or tactile targets delivered on the arms and occupying the same locations in external space. Catch trials were… 

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References

SHOWING 1-10 OF 41 REFERENCES

Enhanced reactivity to visual stimuli in deaf individuals.

TLDR
The findings reveal that enhanced reactivity to visual stimuli in the deaf cannot be explained only by faster orienting of visual attention and can emerge for central as well as peripheral targets.

Changes in Early Cortical Visual Processing Predict Enhanced Reactivity in Deaf Individuals

TLDR
It is found that deaf subjects were faster than hearing controls at detecting the visual targets, regardless of their location in the visual field (peripheral or peri-foveal), and the results provide the first evidence of a co-variation between modified brain activity and behavioural enhancement in this sensory-deprived population.

Visual movement perception in deaf and hearing individuals

TLDR
Overall, deaf and hearing participants did not differ in their movement localization performance, although within the deaf group, a left visual field advantage was found and these results conform to the view that visual abilities are enhanced after auditory deprivation and extend previous findings regarding visual motion processing in deaf individuals.

Further evidence that congenitally blind participants react faster to auditory and tactile spatial targets.

TLDR
It is observed that blind participants had shorter reaction times than sighted controls for the detection of spatial targets in both sensory modalities and this finding held true for both the selective and divided attention conditions.

Hearing Shapes Our Perception of Time: Temporal Discrimination of Tactile Stimuli in Deaf People

TLDR
Early hearing experience seems to be crucial to develop an efficient temporal processing across modalities, suggesting that plasticity does not necessarily result in behavioral compensation.

Visual Advantage in Deaf Adults Linked to Retinal Changes

TLDR
This work investigates neural changes at the retina and optic nerve head in profoundly deaf and hearing adults using Optical Coherence Tomography (OCT), an in-vivo light interference method of quantifying retinal micro-structure, noting specific retinal adaptations in early onset deaf adults which are significantly correlated with peripheral vision sensitivity.

The Effects of Spatial Attention on Motion Processing in Deaf Signers, Hearing Signers, and Hearing Nonsigners

TLDR
The results suggest that attentional orienting and selective attention are altered in the deaf and that these effects are most likely due to auditory deprivation as opposed to sign language experience.

Visual Abilities in Individuals with Profound Deafness A Critical Review

The world is inherently multisensory, and our ability to interact with it largely depends on the capability of our cognitive system to coherently use and integrate such variety of sensory inputs.