ItemInfluence of headphones versus loudspeaker presentation of dichotic speech on ear advantage(2012-08-10) Peshwani, Heena Rakjumar; Martin, Jeffrey S.A right-ear advantage (REA) is a robust phenomenon on dichotic speech tests. Biases in speech perception and cognitive control are believed to produce ear advantage.1 Headphones are often used to deliver dichotic stimuli in order to isolate the two ears, however, similar outcomes have been found in behavioral and electrophysiological studies incorporating loudspeakers. The size of the REA is also known to be influenced by the level of perceptual difficulty (e.g., CV stimuli) and/or linguistic demands placed on the listener (e.g., sentences). ItemIncreasing efficacy for nursing staff via mastery training for hearing aid careGeheber, Laurin; Cokely, Carol Lynn Geltman; School of Behavioral and Brain Sciences• New hearing aid users must acquire knowledge in order to care and maintain their instruments, but knowledge alone may be insufficient. Self-efficacy is needed to implement knowledge. Mastery experiences are an important component of self-efficacy (Smith et. al, 2006); • Self-efficacy is also important for those who are involved in the care of another. Consider that in elder-care or assisted-living facilities, daily hearing aid care and maintenance often is delegated to staff members who are not trained regarding hearing loss or hearing aid care and maintenance (Alford et. al, 2010); • Current research reflects the third phase in ongoing research addressing self-efficacy. Earlier work indicated that training programs increased knowledge but not self-efficacy (Alford et. al, 2010); • To help target appropriate topics for inclusion in the training program, three facility residents were surveyed regarding hearing aid assistance received from nursing staff. ItemInteraural asymmetry using dichotic filtered words in children with suspected auditory processing disorder: preliminary findings(2012-05-11) Huston, Lisa; Gibson, Keiko; Kwan, Jason; Martin, Jeffrey S.; School of Behavioral and Brain Sciences• The direction and magnitude of interaural asymmetry (IA) on dichotic listening tests is often evaluated during diagnostic assessment for APD, with excessive IA (e.g., left-ear deficit) often taken as a sign of the disorder. • It is worthwhile to consider that clinical decisions about IA might be improved when the dichotic test itself generates meaningful amounts of asymmetry in the non-clinical population, but without introducing extra-auditory factors on test performance. • In this regard, a recent study evaluated performances to dichotic low-pass filtered speech (dichotic filtered words, DFWs) presented under DIV and DIR test modes in healthy young adults with normal hearing. Previous studies have suggested that the combined utility of DIV and DIR modes may help discern the relatively contributions of perceptual (bottom-up) versus cognitive (top-down) processing biases underlying IA.3,4 Results showed that larger values of IA (e.g., REA) were produced using DFW as compared to traditional non-filtered stimuli. The magnitude of IA for DFWs was similar between test modes. • The purpose of this study was to further evaluate the DFW paradigm in a sample of school-aged children with and without symptoms of APD.