Reaction Time

451.

Age-related differences in walking stability.

BACKGROUND: a large proportion of falls in older people occur when walking; however the mechanisms underlying impaired balance during gait are poorly understood. OBJECTIVE: to evaluate acceleration patterns at the head and pelvis in young and older ...
Hylton B Menz, Stephen R Lord, Richard C Fitzpatrick (Age Ageing, 200303)
age-related-differences-walking-stability.asp

452.

Dipole source localization and fMRI of simultaneously recorded data applied to somatosensory categorization.

In this study, the feasibility of dipole source localization (DSL) and coregistration with functional magnetic resonance imaging (fMRI) activation patterns on the basis of simultaneously acquired data is demonstrated. Brain activity was mapped during the ...
S Thees, F Blankenburg, B Taskin, G Curio, A Villringer (Neuroimage, 200303)
dipole-source-localization-fmri-simultaneously-recorded-data-applied.asp

453.

Contributions of source and inhibitory mechanisms to age-related retroactive interference in verbal working memory.

Determining contributions of source-monitoring and inhibitory function to age-related forgetting has been an elusive goal for cognitive theorists. Five studies used a verbal working memory paradigm to examine mechanisms accounting for disproportionate ...
Trey Hedden, Denise C Park (J Exp Psychol Gen, 200303)
contributions-source-inhibitory-mechanisms-age-related-retroactive.asp

454.

Childrens working-memory processes: a response-timing analysis.

Recall response durations were used to clarify processing in working-memory tasks. Experiment 1 examined childrens performance in reading span, a task in which sentences were processed and the final word of each sentence was retained for subsequent ...
Nelson Cowan, John N Towse, Zoë Hamilton, J Scott Saults, Emily M Elliott, Jebby F Lacey, Matthew V Moreno, Graham J Hitch (J Exp Psychol Gen, 200303)
children-s-working-memory-processes-response-timing-analysis.asp

455.

Control of voice fundamental frequency in speaking versus singing.

In order to investigate control of voice fundamental frequency (F0) in speaking and singing, 24 adults had to utter the nonsense word [ta:tatas] repeatedly, while in selected trials their auditory feedback was frequency-shifted by 100 cents downwards. In ...
Ulrich Natke, Thomas M Donath, Karl Th Kalveram (J Acoust Soc Am, 200303)
control-voice-fundamental-frequency-speaking-versus-singing.asp

456.

Physiologic impairment of olfactory stimulus processing in schizophrenia.

BACKGROUND: Behavioral studies of olfaction have demonstrated impairments in the ability to detect and identify odors in patients with schizophrenia. These deficits appear to be independent of either symptom severity or other cognitive impairment. Only ...
Bruce I Turetsky, Paul J Moberg, Kiana Owzar, Sarah C Johnson, Richard L Doty, Raquel E Gur (Biol Psychiatry, 200303)
physiologic-impairment-olfactory-stimulus-processing-schizophrenia.asp

457.

Single-cue delay and trace classical conditioning in schizophrenia.

BACKGROUND: Classical conditioning provides a means of addressing mechanisms of learning and can therefore help understand the pathophysiology of memory alteration in schizophrenia. METHODS: Single cue delay and trace eyeblink conditioning were used in ...
Stefano Marenco, Daniel R Weinberger, Bernard G Schreurs (Biol Psychiatry, 200303)
single-cue-delay-trace-classical-conditioning-schizophrenia.asp

458.

Parametric analysis of rate-dependent hemodynamic response functions of cortical and subcortical brain structures during auditorily cued finger tapping: a fMRI study.

A multitude of functional imaging studies revealed a mass activation effect at the level of the sensorimotor cortex during repetitive finger-tapping or finger-to-thumb opposition tasks in terms of either a stepwise or a monotonic relationship between ...
Axel Riecker, Dirk Wildgruber, Klaus Mathiak, Wolfgang Grodd, Hermann Ackermann (Neuroimage, 200303)
parametric-analysis-rate-dependent-hemodynamic-response-functions.asp

459.

Association of ADHD and conduct disorder--brain electrical evidence for the existence of a distinct subtype.

BACKGROUND: To evaluate the impact of psychopathological comorbidity with oppositional defiant/conduct disorder (ODD/CD) on brain electrical correlates in children with attention deficit hyperactivity disorder (ADHD) and to study the pathophysiological ...
Tobias Banaschewski, Daniel Brandeis, Hartmut Heinrich, Bjoern Albrecht, Edgar Brunner, Aribert Rothenberger (J Child Psychol Psychiatry, 200303)
association-adhd-conduct-disorder-brain-electrical-evidence-existence.asp

460.

Improvement in brainstem auditory evoked potentials after suboccipital decompression in patients with chiari I malformations.

OBJECT: The optimal treatment for patients with symptoms related to Chiari I malformation remains controversial. Although a suboccipital decompression with duraplasty is most commonly performed, there may be a subset of patients who improve in response ...
Richard C E Anderson, Ronald G Emerson, Kathryn C Dowling, Neil A Feldstein (J Neurosurg, 200303)
improvement-brainstem-auditory-evoked-potentials-after-suboccipital.asp