Open AccessDiurnal changes in differential sensitivity and temporal resolution in morning‐type and evening‐type individuals with normal hearing
Author(s) -
Nikhil J.,
Megha K.N.,
Prabhu Prashanth
Publication year - 2018
Publication title -
world journal of otorhinolaryngology ‐ head and neck surgery
Language(s) - English
Resource type - Journals
eISSN - 2589-1081
pISSN - 2095-8811
DOI - 10.1016/j.wjorl.2017.10.001
Subject(s) - evening , morning , audiology , diurnal temperature variation , circadian rhythm , population , psychology , medicine , atmospheric sciences , physics , environmental health , astronomy , geology
The present study attempts to determine diurnal changes by testing the differential sensitivity and temporal resolution in morning‐type, evening‐type, and intermediate‐type individuals with normal hearing. Thirty participants with normal hearing were divided into morning‐type, evening‐type, and intermediate‐type using “Morningness–Eveningness Questionnaire”. The tests of differential sensitivity and temporal resolution were administered to all the participants in the morning and evening, respectively. The differences in the test results between different timing across all the three groups were analyzed. The results of the study showed that there was a significant diurnal effect on psychoacoustic tests as morning‐type individuals performed better when tested in morning and evening‐type performed better when they were tested in evening. However, there was no diurnal effect found in intermediate group. The lack of inhibitory control and poor cognitive load in off peak time could have lead to poor scores. Thus, the variable of diurnal effects should be considered in further studies on psychoacoustic tests, especially in young adults. Furthermore, studies could be performed to explore diurnal effects on objective audiological tests in a larger group of population in the future.