PMID: 2099272Nov 1, 1990Paper

Effects of various white noise levels on psychological cognition of school children

Zhonghua yu fang yi xue za zhi [Chinese journal of preventive medicine]
W Y Niu

Abstract

In order to work out a hygienic standard for classroom-noise, 149 school children 8-9 yrs of age were put to psychological cognitive tests under the quiet [42 +/- 1dB(A)] and various white noise levels [50-65dB(A)] classroom conditions in 1986. The main results were as follows: Students under the three white noise levels [greater than or equal to 55dB(A)], all obtained significantly higher means of error scores along with the raising of the noise levels, also lower means of brain work-ability index than under the quiet classroom condition [42 +/- 1dB(A)]. The differences obtained between the three white noise levels [greater than or equal to 55dB(A)] groups and the control group were all statistically significant.

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Journal of Occupational and Environmental Medicine
Ta-Yuan ChangChang-Chuan Chan
The Science of the Total Environment
Bani Szeremeta, Paulo Henrique Trombetta Zannin
Infection Control and Hospital Epidemiology : the Official Journal of the Society of Hospital Epidemiologists of America
Manfred RotterHeinz-Peter Werner
Work : a Journal of Prevention, Assessment, and Rehabilitation
Vincent GouttebargeMonique H W Frings-Dresen
© 2021 Meta ULC. All rights reserved