| Title |
Time for tea: mood, blood pressure and cognitive performance effects of caffeine and theanine administered alone and together
|
|---|---|
| Published in |
Psychopharmacology, September 2007
|
| DOI | 10.1007/s00213-007-0938-1 |
| Pubmed ID | |
| Authors |
Peter J. Rogers, Jessica E. Smith, Susan V. Heatherley, C. W. Pleydell-Pearce |
| Abstract |
Although both contain behaviourally significant concentrations of caffeine, tea is commonly perceived to be a less stimulating drink than coffee. At least part of the explanation for this may be that theanine, which is present in tea but not coffee, has relaxing effects. There is also some evidence that theanine affects cognitive performance, and it has been found to reduce blood pressure in hypertensive rats. |
X Demographics
The data shown below were collected from the profiles of 4 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Saudi Arabia | 1 | 25% |
| Japan | 1 | 25% |
| Unknown | 2 | 50% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 4 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 238 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Italy | 2 | <1% |
| Switzerland | 1 | <1% |
| India | 1 | <1% |
| United Kingdom | 1 | <1% |
| Canada | 1 | <1% |
| Belgium | 1 | <1% |
| Unknown | 231 | 97% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Bachelor | 47 | 20% |
| Student > Master | 37 | 16% |
| Researcher | 30 | 13% |
| Student > Ph. D. Student | 24 | 10% |
| Other | 17 | 7% |
| Other | 34 | 14% |
| Unknown | 49 | 21% |
| Readers by discipline | Count | As % |
|---|---|---|
| Psychology | 38 | 16% |
| Agricultural and Biological Sciences | 34 | 14% |
| Medicine and Dentistry | 34 | 14% |
| Nursing and Health Professions | 16 | 7% |
| Sports and Recreations | 12 | 5% |
| Other | 51 | 21% |
| Unknown | 53 | 22% |
Attention Score in Context
This research output has an Altmetric Attention Score of 38. 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 14 December 2023.
All research outputs
#1,075,803
of 25,396,120 outputs
Outputs from Psychopharmacology
#276
of 5,324 outputs
Outputs of similar age
#1,873
of 84,166 outputs
Outputs of similar age from Psychopharmacology
#3
of 25 outputs
Altmetric has tracked 25,396,120 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 5,324 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 12.1. This one has done particularly well, scoring higher than 94% 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 84,166 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 97% of its contemporaries.
We're also able to compare this research output to 25 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 92% of its contemporaries.