Auditory and Corporal Laterality, Logoaudiometry, and Monaural Hearing Aid Gain

Lateralization of the Dichotic Digits Test, Central Auditory Processes, and Evoked Potentials in Multiple Sclerosis

“…In this case, the results suggest an alteration of the left auditory pathway, probably involving structures connecting temporo-frontal areas, the limbic system, and subcortical thalamic-reticular areas (Fig. 3) [5,[7][8][9][10][11][12][13][14], with better function of the right ear in the DDR test, BAEP, and LLAEP.…”

“…imum of 30 points [7,8]. Lateralization for CAP in the DDR is believed to be the expression of dominant hemispheric auditory function.…”

“…Thus, the dominance could be left, right, or mixed. The mixed type in the DDR test is selected if left or right responses have the same scores or is predominant itself [8].…”

“…Our method for studying CAP included psychoacoustics verbal and non-verbal tests for Spanish-speaking individuals developed at the National Institute of Rehabilitation (INR) and the National Autonomous University of Mexico (UNAM), and have been described elsewhere [3,7,8]. Methods are based on the Bellis model that classifies processing domains alterations as follows: predominantly of the left hemisphere, predominantly of the right hemisphere, of inter-hemispheric relationships, and from the brainstem; the other two types of alterations are those related to attention and receptive language.…”

“…The second CAPD examination disclosed important alterations in the DDR test, neurophysiological recordings, and neuroimaging studies. Based on the DDR alterations, we propose a close relationship of the DDR test with electrophysiological lateralization anomalies [7,8].…”