Twenty schizophrenics with flat affect, 19 right-brain-damaged patients, and 21 normal controls were compared on a task of facial emotional expression. Compared to controls, both patient groups were judged as less expressive and displaying more negative than positive emotion. Patients seemed to have difficulty with the expression of positive…

A review of some of the major works in neurolinguistics published during the last decade extrapolates many implications for second and foreign language theory and practice, covering such issues as hemispheric dominance, language processing, and bilingualism. (35 references) (CB)

Presents the Adaptive Resonance Theory (ART) model as a general framework for explaining common linguistic phenomena such as fossilization, categorical perception, vowel phonemicization, and linguistic rule formation. ART models are compared with cerebellar modes. (49 references) (GLR)

This study examined the effect of emotional content on the verbal pragmatic aspects of discourse production in right-brain-damaged (RBD), left-brain-damaged (LBD), and normal control adults. In the nonemotional conditions, LBDs were particularly impaired in pragmatics, whereas in the emotional condition, RBDs demonstrated pragmatic deficits.…

A study provided specially designed hemisphere-specific stimulation (HSS) and hemisphere-alluding stimulation to 21 children categorized as P-type dyslexics (showing accurate but slow and fragmented reading) and 19 children categorized as L-type dyslexics (fast but inaccurate readers). Participants made gains on all reading measures, regardless of…

Explores what is meant by an understanding of technical material. Proposes five levels of understanding and focuses on descriptions of brain function and structure at the third level. (DDR)

Results of numerous human imaging studies and nonhuman neurophysiological studies on "reward" highlight a role for frontal, striatal, and thalamic regions in operant learning. By integrating operant and functional neuroimaging methodologies, the present investigation examined brain activation to two types of discriminative stimuli correlated with…

Although functional neuroimaging studies of human decision-making processes are increasingly common, most of the research in this area has relied on passive tasks that generate little individual variability. Relatively little attention has been paid to the ability of brain activity to predict overt behavior. Using functional magnetic resonance…

The notion that non-human animals are capable of episodic memory is highly controversial. Here, we review recent behavioral work from our laboratory showing that the fundamental features of episodic memory can be observed in rats and that, as in humans, this capacity relies on the hippocampus. We also discuss electrophysiological evidence, from…

In this article, the author describes seven movement-related areas of cognitive neuroscience research that will play key roles in shifting the current behavioral orientation of teaching and learning to an orientation that also incorporates cognitive neuroscience discoveries. These areas of brain research include: (1) mirroring system; (2) plastic…

Recent findings suggest a right hemispheric dominance in gaze-triggered shifts of attention. The aim of this study was to clarify the dominant hemisphere in the gaze processing that mediates attentional shift. A target localization task, with preceding non-predicative gaze cues presented to each visual field, was undertaken by 44 healthy subjects,…

Theory of mind (ToM)--our ability to predict behaviors of others in terms of their underlying intentions--has been thought to be universal and invariant across different cultures. However, several ToM studies conducted outside the Anglo-American cultural or linguistic boundaries have obtained mixed results. To examine the influence of…

The majority of children and adults with reading disabilities exhibit pronounced difficulties on naming-speed measures such as tests of rapid automatized naming (RAN). RAN tasks require speeded naming of serially presented stimuli and share key characteristics with reading, but different versions of the RAN task vary in their sensitivity: The RAN…

Neglect is an acquired cognitive disorder characterized by a lack of processing of one side of a stimulus or representational space. There are hemispheric asymmetries in its cause and in its effects, but implemented computational models of neglect have tended not to incorporate this fact. The authors report a series of neural network simulations…

Adaptive control of thought-rational (ACT-R; J. R. Anderson & C. Lebiere, 1998) has evolved into a theory that consists of multiple modules but also explains how these modules are integrated to produce coherent cognition. The perceptual-motor modules, the goal module, and the declarative memory module are presented as examples of specialized…