Mastication results from the interaction of an intrinsic rhythmical neural pattern and sensory feedback from the mouth, muscles and joints. The pattern is matched to the physical characteristics of food, but also varies with age. There are large differences in masticatory movements among subjects. The intrinsic rhythmical pattern is generated by…

Event-related potential (ERP) studies have shown that emotional stimuli elicit greater amplitude late positive-polarity potentials (LPPs) than neutral stimuli. This effect has been attributed to arousal, but emotional stimuli are also more semantically coherent than uncategorized neutral stimuli. ERPs were recorded during encoding of positive,…

This paper reports a study designed to examine the neuronal correlates for comprehending the signs of American Sign Language representing numerals in deaf signers who acquired Japanese Sign Language as their first language. The participants were scanned by functional magnetic resonance imaging (fMRI) twice on the day of the experiment. The results…

This paper describes a neural model of speech acquisition and production that accounts for a wide range of acoustic, kinematic, and neuroimaging data concerning the control of speech movements. The model is a neural network whose components correspond to regions of the cerebral cortex and cerebellum, including premotor, motor, auditory, and…

Purpose: Corticomuscular electroencephalographic-electromyographic (EEG-EMG) coherence elicited by speech and nonspeech oromotor tasks in healthy participants and those with Parkinson's disease (PD) was examined. Hypotheses were the following: (a) corticomuscular coherence is demonstrable between orbicularis oris (OO) muscles' EMG and scalp EEG…

One of the most fascinating and frustrating issues in the priority of discovery in science is over just who, for the first time, went on record in the public forum, either orally at a conference or through a published communication, proclaiming that the faculty of articulate human speech was located in the left, not the right, cortical hemisphere.…

It is argued that pessimistic assessments of the adequacy of artificial neural networks (ANNs) for natural language processing (NLP) on the grounds that they have a finite state architecture are unjustified, and that their adequacy in this regard is an empirical issue. First, arguments that counter standard objections to finite state NLP on the…

This brochure discusses briefly, in lay terms, how one individual can approach communicating with another individual who has suffered a stroke. Two kinds of aphasia (language loss) are distinguished: Broca's aphasia, in which the ability to process grammar is impaired, and Wernicke's aphasia, in which neurological damage impairs the ability to…

The goal of all speech rehabilitation methods is the restoration of speech as a unitary higher function. One approach views speech as a complex but coherent system where all levels and components are interconnected. This view takes into consideration the use of verbal communication, which takes place at a higher speech level and includes activity,…

A study of 21 patients with Alzheimer's Disease and 25 with vascular dementia, the two most common forms of dementia, investigated language impairments in the dementia syndrome to see if analysis of language disturbances is helpful in differential diagnosis. Diagnostic assessment included a neurological examination, detailed medical history,…

Examination of the lexical errors (phonological paraphasias and neologisms) of two posterior aphasic patients who are speakers of Finnish, a highly synthetic language, revealed that the lexical difficulties generally typical of posterior aphasics were found in these patients as well. The typical lexical difficulties clustered around open class…

This paper discusses the present state of the art in neurolinguistic studies of bilingualism and delineates areas of further research. The most pertinent studies are reviewed historically. The paper then focuses on some fundamental concepts, such as a definition of bilingualism, interference, recovery process, specific localization, and synchronic…

During the past ten years, research on second language acquisition (SLA) has expanded; at the same time, different models and hypotheses have been proposed to explain and account for the processes underlying SLA. Four models seem to be dominant at the present time: (1) the monitor model, which distinguishes between implicit or unconscious language…

This paper reports an investigation into the dynamics of language processing. The experiment reported here consisted of administering an anagram test to samples from three populations: left brain-damaged with aphasia; right brain-damaged without aphasia and a normal control group. Data are discussed regarding performance in language processing.…

Investigated Neuro-Linguistic Programming eye movement model's claim that specific eye movements are indicative of specific sensory components in thought. Agreement between students' (N=48) self-reports and trained observers' records support visual and auditory portions of model; do not support kinesthetic portion. Interrater agreement supports…