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Assessment of Attentional Demand in Patients with Dizziness Using Dual Task Test

Other Titles
 어지럼증 환자에서 이중 과제 실험을 이용한 주의 요구의 측정 
 Seong Ah Hong  ;  Seon Geum Kim  ;  Eun Jin Son 
 Korean Journal of Otorhinolaryngology-Head and Neck Surgery, Vol.60(5) : 215-221, 2017 
Journal Title
Korean Journal of Otorhinolaryngology-Head and Neck Surgery
Issue Date
Attention ; Posture ; Reaction time ; Task performance and analysis ; Vestibular diseases
Background and Objectives

Even patients with compensated peripheral vestibular dysfunction may report a sense of disequilibrium during daily activities, which often fail conventional vestibular function tests as attentional demand required for postural control may increase in these patients. The study aims to assess the feasibility of dual task test using concurrent cognitive tasks in a modified clinical test of sensory interaction on balance (mCTSIB) to measure increased attentional demand for posture control.

Subjects and Method

Nineteen patients suspected with chronic dizziness were recruited by history reviews and physical examinations. Data for center of pressure (COP) variability and mean velocity during mCTSIB on a force long plate were analyzed, and time taken to react to the auditory stimuli were used to measure the attentional demand required for adequate postural control during platform perturbation.


The mean COP range and velocity during mCTSIB were comparable between single and dual task conditions in patients with dizziness. Reaction time (RT) to auditory stimulus of 1 kHz pure tone in patients with chronic dizziness was also comparable to normal subjects. Interestingly, there was a tendency for increased RT in patients with documented caloric weakness, suggesting that attentional demand is increased in these patients.


RT of dual task tests using auditory stimuli during mCTSIB may provide additional information about increased attentional demand for postural control in patients with vestibular dysfunction.
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Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Otorhinolaryngology (이비인후과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Seon Geum(김선금)
Son, Eun Jin(손은진)
Lee, Eun Jung(이은정) ORCID logo https://orcid.org/0000-0002-0454-4510
Hong, Seong Ah(홍성아)
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