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Olfactory facilitation of dual-task performance.
Neurosci Lett. 2005 Nov 25; 389(1):35-40.NL

Abstract

We investigated the differential effects of olfactory stimulation on dual-task performance under conditions of varying task difficulty. Participants detected visually presented target digits from amongst a stream of visually presented distractor letters in a rapid serial visual presentation (RSVP) task. At the same time, participants also made speeded discrimination responses to vibrotactile stimuli presented on the front or back of their torso. The response mapping was either compatible or incompatible (i.e., lifting their toes for front vibrations and their heel for back vibrations, or vice versa, respectively). Synthetic peppermint odor or clean air (control) was delivered periodically for 35 s in every 315 s. The results showed a significant performance improvement in the presence of peppermint odor (as compared to air) when the response mapping was incompatible (i.e., in the difficult task) but not in the compatible condition (i.e., in the easy task). Our results provide the first empirical demonstration that olfactory stimulation can facilitate tactile performance, and also highlight the potential modulatory role of task-difficulty in odor-induced task performance facilitation.

Authors+Show Affiliations

Department of Experimental Psychology, University of Oxford, South Parks Road, Oxford OX1 3UD, UK. cristy.ho@psy.ox.ac.ukNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

16054298

Citation

Ho, Cristy, and Charles Spence. "Olfactory Facilitation of Dual-task Performance." Neuroscience Letters, vol. 389, no. 1, 2005, pp. 35-40.
Ho C, Spence C. Olfactory facilitation of dual-task performance. Neurosci Lett. 2005;389(1):35-40.
Ho, C., & Spence, C. (2005). Olfactory facilitation of dual-task performance. Neuroscience Letters, 389(1), 35-40.
Ho C, Spence C. Olfactory Facilitation of Dual-task Performance. Neurosci Lett. 2005 Nov 25;389(1):35-40. PubMed PMID: 16054298.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Olfactory facilitation of dual-task performance. AU - Ho,Cristy, AU - Spence,Charles, PY - 2005/05/31/received PY - 2005/06/29/revised PY - 2005/07/01/accepted PY - 2005/8/2/pubmed PY - 2005/10/28/medline PY - 2005/8/2/entrez SP - 35 EP - 40 JF - Neuroscience letters JO - Neurosci Lett VL - 389 IS - 1 N2 - We investigated the differential effects of olfactory stimulation on dual-task performance under conditions of varying task difficulty. Participants detected visually presented target digits from amongst a stream of visually presented distractor letters in a rapid serial visual presentation (RSVP) task. At the same time, participants also made speeded discrimination responses to vibrotactile stimuli presented on the front or back of their torso. The response mapping was either compatible or incompatible (i.e., lifting their toes for front vibrations and their heel for back vibrations, or vice versa, respectively). Synthetic peppermint odor or clean air (control) was delivered periodically for 35 s in every 315 s. The results showed a significant performance improvement in the presence of peppermint odor (as compared to air) when the response mapping was incompatible (i.e., in the difficult task) but not in the compatible condition (i.e., in the easy task). Our results provide the first empirical demonstration that olfactory stimulation can facilitate tactile performance, and also highlight the potential modulatory role of task-difficulty in odor-induced task performance facilitation. SN - 0304-3940 UR - https://www.unboundmedicine.com/medline/citation/16054298/Olfactory_facilitation_of_dual_task_performance_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3940(05)00787-1 DB - PRIME DP - Unbound Medicine ER -