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Activation of auditory cortex during silent lipreading.
Watching a speaker's lips during face-to-face conversation (lipreading) markedly improves speech perception, particularly in noisy conditions. With functional magnetic resonance imaging it was found… Expand
Detection of Audio-Visual Integration Sites in Humans by Application of Electrophysiological Criteria to the BOLD Effect
Electrophysiological studies in nonhuman primates and other mammals have shown that sensory cues from different modalities that appear at the same time and in the same location can increase the… Expand
Amphetamine and apomorphine responses in the rat following 6-OHDA lesions of the nucleus accumbens septi and corpus striatum
Eight mug of 6-hydroxydopamine (6-OHDA) injected bilaterally into the nucleus accumbens septi (NAS) or the caudate nucleus of the rat resulted in 79% and 50% depletion of endogenous dopamine (DA) at… Expand
Sustained attention deficit in bipolar disorder.
- L. Clark, S. Iversen, G. Goodwin
- Psychology, Medicine
- The British journal of psychiatry : the journal…
- 1 April 2002
BACKGROUND Recovery in bipolar disorder is central to its definition but is rarely complete. Previous work has suggested that neuropsychological impairment persists during the euthymic state but has… Expand
Perseverative interference in monkeys following selective lesions of the inferior prefrontal convexity
SummaryMonkeys with lesions of the inferior frontal convexity were impaired relative to controls in retaining an auditory frequency differentiation (although subsequent thresholds were normal) and in… Expand
Defining a left-lateralized response specific to intelligible speech using fMRI.
Functional imaging studies of language have shown bilateral superior temporal activations in response to 'passive' perception of speech when the baseline condition did not control for the acoustic… Expand
Double dissociation of function within the hippocampus: a comparison of dorsal, ventral, and complete hippocampal cytotoxic lesions.
- D. Bannerman, B. Yee, M. Good, M. J. Heupel, S. Iversen, J. Rawlins
- Medicine, Psychology
- Behavioral neuroscience
- 1 December 1999
Rats with complete cytotoxic hippocampal lesions exhibited spatial memory impairments in both the water maze and elevated T maze. They were hyperactive in photocell cages; swam faster in the water… Expand
- S. Iversen
- Clinical Neurophysiology
• Suppose we wish to use a microprocessor to control a motor-(or to control the load attached to the motor!) CPU Operator Input ? digital analog voltage D/A, PWM Amplifier Power supply voltage,… Expand
Response amplification in sensory-specific cortices during crossmodal binding.
- G. Calvert, M. Brammer, E. Bullmore, R. Campbell, S. Iversen, A. David
- Medicine, Psychology
- 20 August 1999
Integrating information across the senses can enhance our ability to detect and classify stimuli in the environment. For example, auditory speech perception is substantially improved when the… Expand
The behavioural effects of MK-801: a comparison with antagonists acting non-competitively and competitively at the NMDA receptor.
- M. Tricklebank, L. Singh, R. Oles, C. Preston, S. Iversen
- Chemistry, Medicine
- European journal of pharmacology
- 11 August 1989
The selective non-competitive NMDA receptor antagonist, MK-801, potently blocked convulsions induced in the mouse by N-methyl-DL-aspartic acid (NMDLA) with an i.v. ED50 dose of 0.2 mg/kg. Similar… Expand