Effects of forest stand density on human's physiopsychological changes

This study was carried out to investigate the influences of forest stand density on human's physiopsychological changes using electroencephalogram (EEG), pulse, profile of mood states (POMS), and semantic differential attitude (SDA) of testees. The stand density, defined as the percentage of tr...

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Bibliographic Details
Published inJournal of the Faculty of Agriculture, Kyushu University Vol. 49; no. 2
Main Authors An, K.W. (Kyushu Univ., Fukuoka (Japan). Faculty of Agriculture), Kim, E.I, Jeon, K.S, Setsu, T
Format Journal Article
LanguageEnglish
Published 01.10.2004
Subjects
BRAIN
BROADLEAVED FORESTS
CONIFEROUS FORESTS
FOREST STANDS
LABORATORY EXPERIMENTATION
PSYCHOLOGICAL FACTORS
SIMULATION
SPACING
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Summary:This study was carried out to investigate the influences of forest stand density on human's physiopsychological changes using electroencephalogram (EEG), pulse, profile of mood states (POMS), and semantic differential attitude (SDA) of testees. The stand density, defined as the percentage of tree crown area of a 10m x 10m plot, was adjusted with computer simulation in order to obtain 30%, 50%, 70%, and 100% of coniferous and broad-leaved forests, respectively. In order to reduce experimental errors of testees, all experiments were conducted in a laboratory where temperature, humidity, and noise levels were controlled. The results obtained showed that a greater stand density of the coniferous forest causes greater activity in the frontal brain, while a lower stand density produces relaxation in the brain. For the broad-leaved forest, the EEG was most active when the stand density was 100%, and both brain activity and pulse rate were most stable at a stand density of 50%.
Bibliography:2005004717
K01
ISSN:0023-6152
DOI:10.5109/4588