Document Detail


The remote sensing of mental stress from the electromagnetic reflection coefficient of human skin in the sub-THz range.
MedLine Citation:
PMID:  22170380     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Recent work has demonstrated that the reflection coefficient of human skin in the frequency range from 95 to 110 GHz (W band) mirrors the temporal relaxation of stress induced by physical exercise. In this work, we extend these findings to show that in the event of a subtle trigger to stress, such as mental activity, a similar picture of response emerges. Furthermore, the findings are extended to cover not only the W band (75-110 GHz), but also the frequency band from 110 to 170 GHz (D band). We demonstrate that mental stress, induced by the Stroop effect and recorded by the galvanic skin response (GSR), can be correlated to the reflection coefficient in the aforementioned frequency bands. Intriguingly, a light physical stress caused by repeated hand gripping clearly showed an elevated stress level in the GSR signal, but was largely unnoted in the reflection coefficient in the D band. The implication of this observation requires further validation. Bioelectromagnetics. © 2011 Wiley Periodicals, Inc.
Authors:
Eli Safrai; Paul Ben Ishai; Andreas Caduff; Alexander Puzenko; Alexander Polsman; Aharon J Agranat; Yuri Feldman
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-12-14
Journal Detail:
Title:  Bioelectromagnetics     Volume:  -     ISSN:  1521-186X     ISO Abbreviation:  -     Publication Date:  2011 Dec 
Date Detail:
Created Date:  2011-12-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8008281     Medline TA:  Bioelectromagnetics     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Wiley Periodicals, Inc.
Affiliation:
Department of Applied Physics, The Hebrew University of Jerusalem, Givat Ram, Jerusalem, Israel.
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