EUROPEAN JOURNAL OF
PHARMACEUTICAL AND MEDICAL RESEARCH

An International Peer Reviewed Journal for Pharmaceutical, Medical & Biological Sciences

An Official Publication of Society for Advance Healthcare Research (Reg. No. : 01/01/01/31674/16)

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 ISSN 2394-3211

Impact Factor: 4.897

 ICV - 79.57

Abstract

CHANGES IN BRAIN WAVES UPON THE RECOGNITION OF EVACUATION SIGNS IN A DISASTROUS SITUATION IN A SUBWAY STATION

Young-Sam Kim, Gil-Hyun Lee and Kyung-Yae Hyun*

ABSTRACT

Smoke caused by a fire in a subway station makes it difficult to breathe and it is also difficult to find an exit in a state of fear in darkness and fires. This study aimed to examine changes in brain waves in four cerebral areas including the frontal, parietal, temporal and occipital lobes when people can effectively evacuate with the help of an identifiable evacuation sign in this disastrous situation. The frequency of waves observed in the left and right frontal lobes showed that the frequency of delta (δ), theta (θ), alpha (α), beta (β) and gamma (γ) waves without an evacuation sign was about 3.4%, 3.8%, 10.6%, 28.1% and 54.1% respectively. The frequency of delta (δ), theta (θ), alpha (α), beta (β) and gamma (γ) waves with an evacuation sign was about 3.5%, 4.1%, 12.3%, 38.6% and 41.5% respectively, indicating that the frequency of beta waves (β) increased by about 10%, and that the frequency of gamma waves (γ) decreased by about 13%. The frequency of waves observed in the left and right parietal lobes showed that the frequency of delta (δ), theta (θ), alpha (α), beta (β) and gamma (γ) waves without an evacuation sign was about 4.8%, 5.8%, 11.5%, 32.1% and 45.8% respectively. The frequency of delta (δ), theta (θ), alpha (α), beta (β) and gamma (γ) waves with an evacuation sign was about 4.9%, 5.2%, 12.1%, 34.5% and 43.3% respectively, indicating that the frequency of beta waves (β) increased by about 2%, and that the frequency of gamma waves (γ) decreased by about 2%. The frequency of waves observed in the left and right temporal lobes showed that the frequency of delta (δ), theta (θ), alpha (α), beta (β) and gamma (γ) waves without an evacuation sign was about 5.8%, 8.6%, 8.6%, 32.1% and 44.9% respectively. The frequency of delta (δ), theta (θ), alpha (α), beta (β) and gamma (γ) waves with an evacuation sign was about 4.6%, 7.9%, 10.9%, 40.5% and 36.4% respectively, indicating that the frequency of beta waves (β) increased by about 8%, and that the frequency of gamma waves (γ) decreased by about 8%. The frequency of waves observed in the left and right occipital lobes showed that the frequency of delta (δ), theta (θ), alpha (α), beta (β) and gamma (γ) waves without an evacuation sign was about 2.1%, 4.2%, 14.9%, 34.1% and 44.7% respectively. The frequency of delta (δ), theta (θ), alpha (α), beta (β) and gamma (γ) waves with an evacuation sign was about 3.6%, 3.9%, 12.6%, 41.8% and 38.1%, indicating that the frequency of beta waves (β) increased by about 7%, and that the frequency of gamma waves (γ) decreased by about 6%. All the four cerebral areas showed a decrease in gamma waves (γ) and an increase in beta waves (β) when there was an evacuation sign, which can be attributed to the reasonal judgements of the subjects based on the evacuation sign.

Keywords: Subway station, evacuation sign, brain wave, beta wave.


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Google Scholar Indian Science Publications InfoBase Index (In Process) SOCOLAR, China Research Bible, Fuchu, Tokyo. JAPAN International Society for Research activity (ISRA) Scientific Indexing Services (SIS) Polish Scholarly Bibliography Global Impact Factor (GIF) (Under Process) Universal Impact Factor International Scientific Indexing (ISI), UAE Index Copernicus CAS (A Division of American Chemical Society) USA (Under Process) Directory of Open Access Journal (DOAJ, Sweden, in process) UDLedge Science Citation Index CiteFactor Directory Of Research Journal Indexing (DRJI) Indian citation Index (ICI) Journal Index (JI, Under Process) Directory of abstract indexing for Journals (DAIJ) Open Access Journals (Under Process) Impact Factor Services For International Journals (IFSIJ) Cosmos Impact Factor Jour Informatics (Under Process) Eurasian Scientific Journal Index (ESJI) International Innovative Journal Impact Factor (IIJIF) Science Library Index, Dubai, United Arab Emirates Pubmed Database [NLM ID: 101669306] (Under Process) IP Indexing (Under Process)