objectives: all subjects suspected of central auditory processing disorder (capd) were previously tested by free recall dichotic digits test (ddt). the study objective was normalization and reliability evaluation of two-pair ddt in 750 native persian subjects aged 8 to 12 years. materials: a total of 750 subjects were divided into five age groups varying between 8 years and 12 years and 11 mont...

Objectives: All subjects suspected of Central Auditory Processing Disorder (CAPD) were previously tested by free recall dichotic digits test (DDT). The study objective was normalization and reliability evaluation of two-pair DDT in 750 native Persian subjects aged 8 to 12 years. Materials: A total of 750 subjects were divided into five age groups varying between 8 years and 12 years and 11 mon...

background and aim: aging is associated with reduced cognitive abilities including attention and memory. there is some evidence that shows randomized dichotic digits test (rddt) has enough difficulty to show the ear asymmetry in dichotic listening. this study aimed to compare the effect of free and focused attention on dichotic listening ability of young and elderly listeners. methods: the cros...

Background and Aim: Aging is associated with reduced cognitive abilities including attention and memory. There is some evidence that shows randomized dichotic digits test (RDDT) has enough difficulty to show the ear asymmetry in dichotic listening. This study aimed to compare the effect of free and focused attention on dichotic listening ability of young and elderly listeners. Methods: The cros...

background and aim: dichotic listening evaluation is one of the most common behavioral procedures for assessing the cerebral dominance of language and is considered as the main component of the auditory processing test battery in children and adults. the randomized dichotic digits test (rddt) has two lists of randomly distributed one-, two-, and three-digit items. this research was performed fo...

The new compact disc from the Department of Veterans Affairs, Tonal and Speech Materials for Auditory, Perceptual Assessment, Disc 2.0 (1998), contains two lists of randomly interleaved 1-, 2-, and 3-pair dichotic digits. Two experiments are reported, in which the effects of low-pass filtering and inter-digit interval on dichotic digit recognition were investigated in adult listeners with norma...

background and aim: auditory processing disorder and dyslexia have been reported by many studies as having high comorbidity. the purpose of the study was to investigate the effectiveness of central auditory processing rehabilitation program on speech reception in noise and dichotic listening in dyslexic students. the research was quasi-experimental, including a pretest, posttest and a control g...

The Department of Veterans Affairs (VA) compact disc (VA-CD) Tonal and Speech Materials for Auditory Perceptual Assessment, Disc 1.0 contains three dichotic speech tests. Two of them, namely, dichotic digits and dichotic synthetic sentences, are tasks that are easily and accurately performed by young normal listeners. The third test, dichotic nonsense syllables, is a more difficult task for nor...