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X Demographics
Mendeley readers
Attention Score in Context
| Title |
Physiological effect of olfactory stimulation by Hinoki cypress (Chamaecyparis obtusa) leaf oil
|
|---|---|
| Published in |
Journal of Physiological Anthropology, December 2015
|
| DOI | 10.1186/s40101-015-0082-2 |
| Pubmed ID | |
| Authors |
Harumi Ikei, Chorong Song, Yoshifumi Miyazaki |
| Abstract |
In recent years, increasing attention has been paid to the physiological effects of nature-derived stimulation. The physiological relaxation effects caused by forest-derived olfactory stimuli have been demonstrated. However, there are no studies on the physiological effects of olfactory stimuli by Hinoki cypress (Chamaecyparis obtusa) leaves. We investigated the effects of olfactory stimulation by Hinoki cypress leaf oil on the left/right prefrontal cortex activity, assessed using near-infrared time-resolved spectroscopy (TRS), and on the autonomic nervous activity, assessed by measuring heart rate variability (HRV). Thirteen female university students (mean age, 21.5 ± 1.0 years) participated in the study. Physiological measurements were performed in an artificial climate maintained at 25 °C, 50 % relative humidity, and 230-lx illumination. Hinoki cypress leaf oil was used as an olfactory stimulation with air as the control. The odor was administered for 90 s, while the subjects sat with their eyes closed. Oxyhemoglobin (oxy-Hb) concentrations were measured in the prefrontal cortex using TRS. The high-frequency (HF) component of HRV, which is an estimate of parasympathetic nervous activity, and the low-frequency (LF)/(LF + HF) ratio, which is an estimate of sympathetic nervous activity, were measured by electrocardiography. A modified semantic differential method was used to perform subjective evaluations. Olfactory stimulation by Hinoki cypress leaf oil induced a significant reduction in oxy-Hb concentration in the right prefrontal cortex and increased parasympathetic nervous activity. The subjects reported feeling more comfortable. These findings indicate that olfactory stimulation by Hinoki cypress leaf oil induces physiological relaxation. |
X Demographics
The data shown below were collected from the profiles of 9 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 3 | 33% |
| Canada | 1 | 11% |
| Ireland | 1 | 11% |
| Unknown | 4 | 44% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 9 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 101 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 1 | <1% |
| Italy | 1 | <1% |
| Unknown | 99 | 98% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 15 | 15% |
| Student > Master | 12 | 12% |
| Student > Ph. D. Student | 11 | 11% |
| Student > Bachelor | 11 | 11% |
| Other | 7 | 7% |
| Other | 21 | 21% |
| Unknown | 24 | 24% |
| Readers by discipline | Count | As % |
|---|---|---|
| Psychology | 14 | 14% |
| Agricultural and Biological Sciences | 11 | 11% |
| Medicine and Dentistry | 10 | 10% |
| Sports and Recreations | 6 | 6% |
| Biochemistry, Genetics and Molecular Biology | 5 | 5% |
| Other | 26 | 26% |
| Unknown | 29 | 29% |
Attention Score in Context
This research output has an Altmetric Attention Score of 36. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 03 January 2024.
All research outputs
#1,114,809
of 25,374,647 outputs
Outputs from Journal of Physiological Anthropology
#39
of 451 outputs
Outputs of similar age
#18,860
of 396,428 outputs
Outputs of similar age from Journal of Physiological Anthropology
#2
of 7 outputs
Altmetric has tracked 25,374,647 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 95th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 451 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 22.4. This one has done particularly well, scoring higher than 91% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 396,428 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 95% of its contemporaries.
We're also able to compare this research output to 7 others from the same source and published within six weeks on either side of this one. This one has scored higher than 5 of them.