Research at TRI
AROMATHERAPY STUDIES
Diego, M., Jones, N.A., Field, T.,
Hernandez-Reif, M., Schanberg, S., Kuhn, C., McAdam, V., Galamaga, R. &
Galamaga, M.(1998). Aromatherapy positively affects
mood, EEG patterns of alertness and math computations. International Journal of Neuroscience, 96, 217-224.
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EEG activity, alertness, and mood were assessed in 40 adults given aromatherapy
using two aromas, lavender (relaxing odor) or rosemary (stimulating odor).
Participants were also given simple math computations before and after the
therapy. The lavender group showed increased drowsiness, they had less
depressed mood and performed the math computations faster and more accurately.
The rosemary group showed greater alertness, were more relaxed, and only faster
not accurate at completing the math computations.
Fernandez, M., Hernandez-Reif, M.,
Field, T., Sanders, C., Diego, M., &
• This study
investigated whether exposure to lavender or rosemary would change EEG activity
and behavior in infants of depressed and non-depressed mothers. Although the
groups did not differ at baseline and the two odors did not differentially
affect the EEG, the infants of depressed mothers showed increased relative left
frontal EEG asymmetry from baseline to the odor exposure phase. Infants of
non-depressed mothers showed no change in frontal EEG asymmetry from baseline
to the odor exposure phase.
Field, T., Cullen, C.,
Largie, S., Diego, M., Schanberg, S. & Kuhn, C. (2008). Lavender bath oil reduces stress and crying and enhances sleep in very young
infants. Early Human Development, 84, 399-401.
• Very young infants were given a bath
with or without lavender-scented bath oil. The mothers in the lavender bath oil
group were more relaxed, smiled and touched their infants more during the bath.
Their infants looked at them a greater percentage of the bath time and cried
less and spent more time in deep sleep after the bath. The cortisol levels of
this group of mothers and infants significantly decreased, confirming the
behavioral data showing increased relaxation of the mothers and their infants.
These findings support a body of research showing the relaxing and
sleep-inducing properties of lavender aroma.
Field, T., Diego, M., Hernandez-Reif,
M., Cisneros, W., Feijo, L., Vera, Y., & Gil, K. (2005). Lavender fragrance cleansing gel effects on relaxation. International Journal of Neuroscience, 115, 207-222.
•
Alertness, mood, and math computations were assessed in healthy adults who
sniffed a cosmetic cleansing gel with lavender floral blend aroma, developed to
be relaxing. EEG patterns and heart rate were also recorded before, during and
after the aroma session. The lavender fragrance blend improved mood and made
the participants feel more relaxed, and perform math computations faster.
Sanders, C., Diego, M., Fernandez, M.,
Field, T., Hernandez-Reif, M. & Roca, A. (2002). EEG
asymmetry responses to lavender and rosemary aromas in adults and infants. International Journal of Neuroscience,
112, 1305-1320.
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Frontal EEG asymmetry shifting from baseline was examined in adults and infants
exposed to lavender and rosemary. Results showed significant EEG shifting in
the lavender group, with a positive shift to greater relative left frontal EEG
activation.
