Tags

Type your tag names separated by a space and hit enter

Aromas of rosemary and lavender essential oils differentially affect cognition and mood in healthy adults.
Int J Neurosci. 2003 Jan; 113(1):15-38.IJ

Abstract

This study was designed to assess the olfactory impact of the essential oils of lavender (Lavandula angustifolia) and rosemary (Rosmarlnus officinalis) on cognitive performance and mood in healthy volunteers. One hundred and forty-four participants were randomly assigned to one of three independent groups, and subsequently performed the Cognitive Drug Research (CDR) computerized cognitive assessment battery in a cubicle containing either one of the two odors or no odor (control). Visual analogue mood questionnaires were completed prior to exposure to the odor, and subsequently after completion of the test battery. The participants were deceived as to the genuine aim of the study until the completion of testing to prevent expectancy effects from possibly influencing the data. The outcome variables from the nine tasks that constitute the CDR core battery feed into six factors that represent different aspects of cognitive functioning. Analysis of performance revealed that lavender produced a significant decrement in performance of working memory, and impaired reaction times for both memory and attention based tasks compared to controls. In contrast, rosemary produced a significant enhancement of performance for overall quality of memory and secondary memory factors, but also produced an impairment of speed of memory compared to controls. With regard to mood, comparisons of the change in ratings from baseline to post-test revealed that following the completion of the cognitive assessment battery, both the control and lavender groups were significantly less alert than the rosemary condition; however, the control group was significantly less content than both rosemary and lavender conditions. These findings indicate that the olfactory properties of these essential oils can produce objective effects on cognitive performance, as well as subjective effects on mood.

Authors+Show Affiliations

Human Cognitive Neuroscience Unit, Division of Psychology, Northumberland Building, University of Northumbria, Newcastle upon Tyne, NE1 8ST, UK. mark.moss@unn.ac.ukNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
Journal Article
Randomized Controlled Trial

Language

eng

PubMed ID

12690999

Citation

Moss, Mark, et al. "Aromas of Rosemary and Lavender Essential Oils Differentially Affect Cognition and Mood in Healthy Adults." The International Journal of Neuroscience, vol. 113, no. 1, 2003, pp. 15-38.
Moss M, Cook J, Wesnes K, et al. Aromas of rosemary and lavender essential oils differentially affect cognition and mood in healthy adults. Int J Neurosci. 2003;113(1):15-38.
Moss, M., Cook, J., Wesnes, K., & Duckett, P. (2003). Aromas of rosemary and lavender essential oils differentially affect cognition and mood in healthy adults. The International Journal of Neuroscience, 113(1), 15-38.
Moss M, et al. Aromas of Rosemary and Lavender Essential Oils Differentially Affect Cognition and Mood in Healthy Adults. Int J Neurosci. 2003;113(1):15-38. PubMed PMID: 12690999.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Aromas of rosemary and lavender essential oils differentially affect cognition and mood in healthy adults. AU - Moss,Mark, AU - Cook,Jenny, AU - Wesnes,Keith, AU - Duckett,Paul, PY - 2003/4/15/pubmed PY - 2003/5/2/medline PY - 2003/4/15/entrez SP - 15 EP - 38 JF - The International journal of neuroscience JO - Int J Neurosci VL - 113 IS - 1 N2 - This study was designed to assess the olfactory impact of the essential oils of lavender (Lavandula angustifolia) and rosemary (Rosmarlnus officinalis) on cognitive performance and mood in healthy volunteers. One hundred and forty-four participants were randomly assigned to one of three independent groups, and subsequently performed the Cognitive Drug Research (CDR) computerized cognitive assessment battery in a cubicle containing either one of the two odors or no odor (control). Visual analogue mood questionnaires were completed prior to exposure to the odor, and subsequently after completion of the test battery. The participants were deceived as to the genuine aim of the study until the completion of testing to prevent expectancy effects from possibly influencing the data. The outcome variables from the nine tasks that constitute the CDR core battery feed into six factors that represent different aspects of cognitive functioning. Analysis of performance revealed that lavender produced a significant decrement in performance of working memory, and impaired reaction times for both memory and attention based tasks compared to controls. In contrast, rosemary produced a significant enhancement of performance for overall quality of memory and secondary memory factors, but also produced an impairment of speed of memory compared to controls. With regard to mood, comparisons of the change in ratings from baseline to post-test revealed that following the completion of the cognitive assessment battery, both the control and lavender groups were significantly less alert than the rosemary condition; however, the control group was significantly less content than both rosemary and lavender conditions. These findings indicate that the olfactory properties of these essential oils can produce objective effects on cognitive performance, as well as subjective effects on mood. SN - 0020-7454 UR - https://www.unboundmedicine.com/medline/citation/12690999/Aromas_of_rosemary_and_lavender_essential_oils_differentially_affect_cognition_and_mood_in_healthy_adults_ L2 - https://www.tandfonline.com/doi/full/10.1080/00207450390161903 DB - PRIME DP - Unbound Medicine ER -