Laterality indices were small and tended to increase with age, as previously reported. ![]() However, a significant interaction was found between ear, group, and ILD. Neither group, age, nor report method affected the LI of right/left recall. Some activated areas were correlated with dichotic results in TD children only. fMRI measured brain activation produced by a receptive speech task that segregated speech, phonetic, and intelligibility components. Dichotic listening (DL) data were analyzed initially by group (LiD, TD), age, report method (NF, FR, FL), and ILD (0, ± 15 dB) and compared with speech-in-noise thresholds (LiSN-S) and cognitive performance (NIH Toolbox). Interaural level differences (ILDs) manipulated bottom-up perceptual salience. Children reported the syllable heard most clearly (non-forced, NF) or the syllable presented to the right or left ear. Different single syllables (ba, da, ga, pa, ta, ka) were presented simultaneously to each ear (6 × 36 trials). We examined the ability of 6–13 year old (y.o.) children with normal audiometric thresholds to identify and selectively attend to dichotically presented CV syllables using the Bergen Dichotic Listening Test (BDLT Children were recruited as typically developing (TD n = 39) or having LiD ( n = 35) based primarily on composite score of the ECLiPS caregiver report. Impaired interactions between the two ears have been proposed as an important component of LiD when there is no hearing loss, also known as auditory processing disorder (APD). Listening difficulties (LiD) are common in children with and without hearing loss. 9Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States.8Division of Neurology and Pediatric Neuroimaging Research Consortium, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States.7Division of Psychology and Language Sciences, University College London, London, United Kingdom.6Department of Radiology, Haukeland University Hospital, Bergen, Norway.5Department of Psychiatry, Haukeland University Hospital, Bergen, Norway.4Department of Biological and Medical Psychology, Faculty of Psychology, University of Bergen, Bergen, Norway.3Manchester Centre for Audiology and Deafness, University of Manchester, Manchester, United Kingdom.2Department of Otolaryngology, University of Cincinnati College of Medicine, Cincinnati, OH, United States. ![]() ![]()
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