New research findings about how nerve cells transmit signals are forcing researchers to overhaul their simplistic ideas about the nervous system. Topics highlighted include the multiple role of peptides in the nervous system, receptor molecules, and molecules that form ion channels within membranes. (Author/JN)

Brain is the source of all human thoughts, feelings and emotions. Now the mysteries of the human brain are rapidly being elucidated by neuroscience research. For more than 150 years, neuroscience has held that most of the brain's functionality develops during critical periods in early childhood and that once past these critical periods, the window…

Background: Brain imaging studies have revealed anatomical anomalies in the brains of individuals with Tourette syndrome (TS). Prefrontal regions have been found to be larger and the corpus callosum (CC) area smaller in children and young adults with TS compared with healthy control subjects, and these anatomical features have been understood to…

The purpose of this study was to demonstrate that the neural efficiency of the human brain as measured by parameters of sensory evoked potentials varies depending on the sensory input used within the same subject. The subjects were 213 children aged eight to 16 years, selected randomly. Computer analysis of EEG data was performed in order to…

Evidence indicates that local, small brain cells play key roles in information processing in the nervous system. (BT)

Reviewed are theories and practices advocated by G. Doman and C. Delacato to remediate handicapping conditions in children. (CL)

Presents a paper that relates human behaviors, such as pleasure, pain, learning, and speech to specific anatomical areas of the brain. (MLH)

Auditory brainstem responses (ABR) were measured in 535 children from 3 months to 3 years of age. Results suggested that changes in wave V latency with age are due to central (neural) factors and that age-appropriate norms should be used in evaluations of ABR latencies in children. (Author/DB)

Results for sensory thalamocortical latency (3 somatosensory evoked potentials) for 205 college students agree with data that correlate a more extensive visual evoked potential latency with intelligence quotient. Findings suggest that the correlation occurs because the latency indexes cortical nerve conduction velocity. (SLD)

The understanding of fundamental neurological processes that enables the brain to analyze good learning produces physical changes in brain. The use of several regions of brain in the learning process and problem solving techniques are discussed.

Two experiments were conducted to determine a possible relationship between the right hemisphere, music perception, and mental imagery. The first experiment compared two groups of college students, one of which showed a preference for left hemisphere thinking (n=22) and the other a preference for right hemisphere thinking (n=20), in order to test…

This study attempts to evaluate procedures for studying hemispheric differences in newborn human infants and to determine what acoustic characteristics of speech sounds will trigger a left hemisphere (LH) repsonse. Within 48 hours of birth, 14 neonates were individually administered five aural stimuli which comprised two speech syllables, two…

Research shows that persons with dyslexia may have bilateral neural involvement in spatial processing that interferes with the left hemisphere's processing of its own specialized functions. This results in deficient linguistic, sequential cognitive processing. (MLH)

Discusses techniques for studying large-scale brain activity, insights from computational modeling, and cognitive processes that could lead to a better understanding of cognition. Describes interactions between psychology and physiology in perception, structural levels of organization in the nervous system, techniques and research strategies. (RT)

Reviews computer tomography and magnetic resonance imaging studies examining deviations in brain morphology. Discusses methodological and technical issues. Concludes that dyslexics show variations in specific brain regions. Suggests that neuroimaging procedures appear to provide direct evidence supporting the importance of deviations in normal…