Comparison of auditory deficits associated with neglect and auditory cortex lesions

Lesions of the visual and somatosensory cortex produce clear contra-lesional deficits. In contrast, unilateral lesions of the auditory cortex produce contra-lesional extinction when two stimuli are simultaneously presented to the left and right ear, but little deficits in the absence of sensory competition. Because auditory extinction is also considered a sign of neglect, the clinical separation of auditory neglect from deficits caused by lesions of the auditory cortex is challenging, as both are expected to frequently co-occur. Here, we directly compared a number of tests previously used for either auditory-cor…