PubMed Health⌕ Search

Biomedical subjects

Paul Eling

Publications and source records attributed to Paul Eling.

10 recordsLinked to original sources
PubMed2006

Meynert on Wernicke's aphasia.

This paper examines Meynert's contribution to aphasia, in particular the suggestion that Meynert already had described the syndrome of sensory aphasia. I examine Meynert's own writings on this subject, Wernicke's statements on this issue and biographies of Meynert and Wernicke. I argue that Meynert did not describe sensory aphasia, nor is there convincing evidence that he stimulated Wernicke in this direction. Meynert was primarily interested in the global neuroanatomical organization of the brain and in particular the special role of the frontal lobes.

Aphasia, Wernicke↗
PubMed2005

Mental fatigue disturbs local processing more than global processing.

Focusing of attention is influenced by external features such as the presence of global or local target stimuli, but also by motivation and mood states. In the current study, we examined whether working on cognitively demanding tasks for 2 h, which induces mental fatigue, subsequently had a differential effect on global and local processing. The results showed that, compared to non-fatigued participants, fatigued participants particularly displayed compromised local processing. This indicates that mental fatigue may also manifest itself as effects on attentional focusing. The findings of this study are in line with recent ideas about the nature of fatigue-related cognitive deficits, implying disturbances in the control over attention and behaviour.

Adult↗
PubMed2005

Visual search for item- and array-centered locations in patients with left middle cerebral artery stroke.

In this study we systematically explored the impact of left hemisphere (LH) lesions on array-centered and item-centered spatial attention. We investigated 16 LH first ever stroke patients, focusing on strokes of the Middle Cerebral Artery (MCA), and 15 healthy control subjects with a parallel and serial search paradigm. None of the LH patients had a hemianopia or neglect. We systematically varied the item-centered (left- or right-side of a single item) and the array-centered position (left or right position in the search array of ten items) of critical features. Lesion sites were evaluated using MRIcro (Version 1.37; Rorden and Brett, 2000). The results show that patients had no specific problem with parallel search. In serial search patients showed a left to right gradient-like increase in response time for array-positions and they omitted more items if the critical feature was located on the right side of the items in the right half of the array. For low performing patients we found an overlapping lesion area around and anterior to the precentral sulcus (Brodmann's area 6 and 44), encompassing the frontal eye field. We conclude that LH MCA strokes may lead to search impairments in spatial attention, in particular in shifting to the right side of the visual field. Impaired rightward shifting moreover reduces the chance of detecting right-sided item features (but not left-sided). This suggests that spatial attention works with different reference frames, with spatial orientation being more basic than analyzing spatial aspects of objects.

Adult↗
PubMed2004

Response shifting and inhibition, but not working memory, are impaired after long-term heavy alcohol consumption.

Chronic alcohol abuse leads to cognitive deficits. The authors investigated whether a systematic increase of interference in a 2-back working memory paradigm would lead to cognitive deficits in alcoholic participants and compared their performance in such a task with that in an alternate-response task. Twenty-four nonamnesic and nondemented alcohol abuse (AA) patients and 12 patients with Korsakoff's syndrome (KS) were compared with a control group. AA patients were impaired in the alternate-response task but not in working memory interference resolution. KS patients performed worse than the AA patients and the controls in both tasks. The neurotoxic side effects of alcohol therefore lead to a specific deficit in alternating between response rules but not in working memory, independently of whether the working memory task involves interference resolution or not.

Adult↗
PubMed2003

Louis Muskens: a leading figure in the history of Dutch and world epileptology.

In the history of Dutch neurology Muskens has a place in his own right. Elderly neurologists still attest to the special fame of Muskens. He held a strong opinion on developing the specialty of neurology independent of psychiatry. At the same time he maintained that surgery of the nervous system also should be included in the realm of neurology. These views met with considerable opposition from colleagues and led to Muskens' isolation. To the field of epileptology he contributed both clinical and experimental neurological studies. With Donath he was the co-founder of the International League Against Epilepsy in 1909. In addition he held a lifelong interest in the pathophysiology of forced movements, which he studied both in human pathology and in experimental studies throughout the vertebrate series. This resulted in his magnum opus on the supravestibular system in 1935. His scientific work was well received in scientific societies all over Europe.

Animals↗
PubMed2002

The mystery of the Doctor's son, or the riddle of West syndrome.

Although the eponym "West syndrome" is used widely for infantile spasms, the originators of the term and the time frame of its initial use are not well known. This article provides historical details about Dr. West, about his son who had infantile spasms, and about the circumstances leading to the coining of the term West syndrome.

Eponyms↗