Differential diagnosis of apraxia of speech (AOS) is complicated by frequently co-occurring speech and language disorders. Auditory-perceptual measures may not adequately differentiate between disorders. This study adapted an acoustic analysis protocol developed for Parkinson’s disease (PD). Preliminary results are positive, showing differences between individuals with AOS, PD, and healthy cont...

Zeng, Fan-Gang, Ying-Yee Kong, Henry J. Michalewski, and Arnold Starr. Perceptual consequences of disrupted auditory nerve activity. J Neurophysiol 93: 3050–3063, 2005. First published December 22, 2004; doi:10.1152/jn.00985.2004. Perceptual consequences of disrupted auditory nerve activity were systematically studied in 21 subjects who had been clinically diagnosed with auditory neuropathy (AN...

background: learning disability is one of the most noticed subjects for behavioral specialists. most of the learning difficulties are caused by senso-motor development and neurological organization. the main purpose of the present research is to examine the role of delayed perceptual-motor development and brain damage in origination of expressive writing disorder (ewd).   methods: the studied s...

The diffusion of an overdamped Brownian particle in a tilted periodic potential is known to exhibit a pronounced enhancement over the free thermal diffusion within a small interval of tilt values. Here we show that weak disorder in the form of small, time-independent deviations from a strictly spatially periodic potential may further boost this diffusion peak by orders of magnitude. Our general...

The effect of quenched random fields and local perturbations of critical temperature on the critical behavior at phase transitions is studied within the framework of an exactly solvable model that takes into account interaction of fluctuations with equal and opposite momenta. Using the replica method the dimensional reduction by 2 for systems with finite-range interaction and quenched random fi...

In the crafting of therapeutic intervention, pediatric occupational therapists are challenged to provide therapeutic modalities that are as stimulating and imaginative as the child's world, while offering appropriate and meaningful solutions to the child's problems. Storytelling, coupled with the visual, auditory, and kinesthetic stimulation of guided affective imagery, offers a stimulating tre...

Some patients with brain lesions do not respond normally to stimuli from the side opposite their lesions, and behave as though the stimuli were not present. This phenomenon is called neglect or inattention. A number of manifestations of neglect occur: neglect on double simultaneous stimulation (visual, auditory, tactile), neglect during reading, drawing, picture description, and the complex phe...

While viewing certain stimuli, perception changes spontaneously in the face of constant input. For example, during "motion-induced blindness" (MIB), a small salient target spontaneously disappears and reappears when surrounded by a moving mask. Models of such bistable perceptual phenomena posit spontaneous fluctuations in neuronal activity throughout multiple stages of the visual cortical hiera...

Self-localization requires that information from several sensory modalities and knowledge domains be integrated in order to identify an environment and determine current location and heading. This integration occurs by the convergence of highly processed sensory information onto neural systems in entorhinal cortex and hippocampus. Entorhinal neurons combine angular and linear self-motion inform...