Research is being conducted to determine the factors behind linguistic retardation in children. A first question raised was whether the linguistic system of the deviant child is qualitatively different from that of a normal child. A matching-up of deviant and normal children according to linguistic level suggests that the onset of base syntax may…

Examines Nickels's claim that interactive models of lexical access in speech production cannot account for naming data from a group of anomic patients. This paper reiterates that the behavior of connectionist models is not easily predictable without running the appropriate simulations, and discusses the role of frequency in lexical access in…

The use of a traditional syndrome-classification system for aphasics is examined critically from the different perspectives of medicine and psychometrics. Medicine views syndromes as dichotomous (present or not present) and necessarily indicative of an underlying pathognomic state or process, and psychometrics sees performances as varying along a…

This paper examines the perceptual processes that underlie normal language acquisition with relation to perceptual dysfunctions in the aphasic child. Experiments are cited which seem to indicate that auditory dyfunctions may underlie language impairment. Experimental studies of the linguistic systems of the aphasic child seem to support the theory…

This paper describes the results of two studies of auditory processing in child aphasia, and their implication for understanding deviant language development. The term "aphasia" is discussed as it is used to describe adult and child language disorders. A first experiment on the auditory functioning in aphasic and nonaphasic children suggests that…

Discusses recent studies of aphasia from the perspective of theories of normal language structure and processing. Patterns of language breakdown are considered to reflect the componential structure of the language system. Brain damage is seen to fractionate language along lines suggested by existing psycholinguistic models. (Author)

Vertical and lateral integration are two important nervous system integrations that affect the development of oral behaviors. There are three progressions in the vertical integration process for speech nervous system development: R-complex speech (ritualistic, memorized expressions), limbic speech (emotional expressions), and cortical speech…

Language disorders in children are one of the most frequent causes of difficulties in communication, social interaction, learning and academic achievement. It has been estimated that over 5% of children present with some kind of language disorder. This volume illustrates the state of the art in neurogenic language disorders in children. The most…

This book examines how the brain enables people to speak creatively and build up an understanding of language. The discussion looks at the linguistic and neuro-anatomical underpinnings of language and considers how language skills can systematically break down in individuals with different types of brain damage. By studying children with language…

The Mackworth wide-angle reflection eye camera was used to record the position of the gaze on a display of 16 white symbols. One of these symbols changed to red after 30 seconds, remained red for a minute of testing, and then became white again. The subjects were 10 aphasic children (aged 5-9), who were compared with a group of 10 normal children,…

Acknowledging the importance of sight to the writing process, the paper elucidates the processes of vision related to the composing process. In the opening section the physics of light and vision, optic neuroanatomy, and cortical responses to visual stimuli are explained. Next, theories of vision and data mapping are examined and their…

This paper is concerned with the Aristotelian notion of "universal" as applied to phonological phenomena. It is claimed that speech production in children and adults, in normal and deviant speakers, and in a variety of languages, can all be described according to the same universal phonological rules which constitute the universal process of…

Three objectives of research reported here were to describe the neural organization underlying language usage and language loss, to study activities occurring in both cerebral hemispheres, and to study neural changes related to changes in syntactic complexity of stimuli. A dichoptic procedure was chosen. A subject faced a viewing screen on which…

This monograph investigates aspects of language processing that are not specialized in the left hemisphere, and claims that there are "levels" (such as pitch functions) and "subsets" (such as phrase structuring) which are different in essential ways from each other, and from the aspects of speech and language which are typically lateralized.…

Reexamines the question of why pattern practice fails by hypothesizing about the information processing activities that they entail. (Author/CFM)