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Intermodal auditory, visual, and tactile attention modulates early stages of neural processing.
J Cogn Neurosci. 2009 Apr; 21(4):669-83.JC

Abstract

We used event-related potentials (ERPs) and gamma band oscillatory responses (GBRs) to examine whether intermodal attention operates early in the auditory, visual, and tactile modalities. To control for the effects of spatial attention, we spatially coregistered all stimuli and varied the attended modality across counterbalanced blocks in an intermodal selection task. In each block, participants selectively responded to either auditory, visual, or vibrotactile stimuli from the stream of intermodal events. Auditory and visual ERPs were modulated at the latencies of early cortical processing, but attention manifested later for tactile ERPs. For ERPs, auditory processing was modulated at the latency of the Na (29 msec), which indexes early cortical or thalamocortical processing and the subsequent P1 (90 msec) ERP components. Visual processing was modulated at the latency of the early phase of the C1 (62-72 msec) thought to be generated in the primary visual cortex and the subsequent P1 and N1 (176 msec). Tactile processing was modulated at the latency of the N160 (165 msec) likely generated in the secondary association cortex. Intermodal attention enhanced early sensory GBRs for all three modalities: auditory (onset 57 msec), visual (onset 47 msec), and tactile (onset 27 msec). Together, these results suggest that intermodal attention enhances neural processing relatively early in the sensory stream independent from differential effects of spatial and intramodal selective attention.

Authors+Show Affiliations

University of California Berkeley, USA. ckarns@uoregon.eduNo affiliation info available

Pub Type(s)

Journal Article
Research Support, N.I.H., Extramural

Language

eng

PubMed ID

18564047

Citation

Karns, Christina M., and Robert T. Knight. "Intermodal Auditory, Visual, and Tactile Attention Modulates Early Stages of Neural Processing." Journal of Cognitive Neuroscience, vol. 21, no. 4, 2009, pp. 669-83.
Karns CM, Knight RT. Intermodal auditory, visual, and tactile attention modulates early stages of neural processing. J Cogn Neurosci. 2009;21(4):669-83.
Karns, C. M., & Knight, R. T. (2009). Intermodal auditory, visual, and tactile attention modulates early stages of neural processing. Journal of Cognitive Neuroscience, 21(4), 669-83. https://doi.org/10.1162/jocn.2009.21037
Karns CM, Knight RT. Intermodal Auditory, Visual, and Tactile Attention Modulates Early Stages of Neural Processing. J Cogn Neurosci. 2009;21(4):669-83. PubMed PMID: 18564047.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Intermodal auditory, visual, and tactile attention modulates early stages of neural processing. AU - Karns,Christina M, AU - Knight,Robert T, PY - 2008/6/20/pubmed PY - 2009/5/5/medline PY - 2008/6/20/entrez SP - 669 EP - 83 JF - Journal of cognitive neuroscience JO - J Cogn Neurosci VL - 21 IS - 4 N2 - We used event-related potentials (ERPs) and gamma band oscillatory responses (GBRs) to examine whether intermodal attention operates early in the auditory, visual, and tactile modalities. To control for the effects of spatial attention, we spatially coregistered all stimuli and varied the attended modality across counterbalanced blocks in an intermodal selection task. In each block, participants selectively responded to either auditory, visual, or vibrotactile stimuli from the stream of intermodal events. Auditory and visual ERPs were modulated at the latencies of early cortical processing, but attention manifested later for tactile ERPs. For ERPs, auditory processing was modulated at the latency of the Na (29 msec), which indexes early cortical or thalamocortical processing and the subsequent P1 (90 msec) ERP components. Visual processing was modulated at the latency of the early phase of the C1 (62-72 msec) thought to be generated in the primary visual cortex and the subsequent P1 and N1 (176 msec). Tactile processing was modulated at the latency of the N160 (165 msec) likely generated in the secondary association cortex. Intermodal attention enhanced early sensory GBRs for all three modalities: auditory (onset 57 msec), visual (onset 47 msec), and tactile (onset 27 msec). Together, these results suggest that intermodal attention enhances neural processing relatively early in the sensory stream independent from differential effects of spatial and intramodal selective attention. SN - 0898-929X UR - https://www.unboundmedicine.com/medline/citation/18564047/Intermodal_auditory_visual_and_tactile_attention_modulates_early_stages_of_neural_processing_ L2 - https://direct.mit.edu/jocn/article-lookup/doi/10.1162/jocn.2009.21037 DB - PRIME DP - Unbound Medicine ER -