Rotated Drawing: The Range of Performance and Anatomical Correlates in a Series of 16 Patients

Solms, Mark; Turnbull, Oliver; Kaplan-Solms, Karen; Miller, Percy

doi:10.1006/brcg.1998.1032

Cited by 57 publications

(16 citation statements)

References 18 publications

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“…She was generally accurate (within 10°) only making one error that was more than 45°incor-rect. Thus, the patient showed a quite different pattern of performance to those that have been termed orientation agnosic [48,54].…”

Section: Object Recognitionmentioning

confidence: 81%

A particular difficulty in discriminating between mirror images

Davidoff

Warrington

2001

Neuropsychologia

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We investigated the selective impairment of mirror image discrimination in a patient with bilateral parieto-occipital lesions (FIM). We report a difficulty with the discrimination between mirror images more selective than has been previously reported (Turnbull OH, McCarthy RA. Failure to discriminate between mirror-image objects: a case of viewpoint-independent object recognition? Neurocase 1996;2:63). FIM was asked to judge, in five same/different experiments, whether pairs of simultaneously presented line drawings of objects were identical. FIM demonstrated only a minor impairment in discriminating between orientations in the picture plane but was at chance in making discrimination between mirror images. An experiment with normal observers established that our results were not due to differences in task difficulty. Two further experiments investigated the effects of rotation on the discrimination of letters and geometric shapes. FIM's impairment extended to geometric shapes but not to letters. These results would be consistent with the preservation of an abstract representation for object recognition that did not code the difference between mirror image views.

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Section: Object Recognitionmentioning

confidence: 81%

A particular difficulty in discriminating between mirror images

Davidoff

Warrington

2001

Neuropsychologia

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“…In our study, ROCF copy errors made by our patient group with PS are similar with the ones found in patients with parietal-occipital lesions [27]: most of the figure elements are present; they are neither replicated nor their units multiplied but (slightly to mildly) rotated or misaligned between each other. Solms et al [28] described a group of 16 patients who showed gross rotation on the copy task of ROCF. In 9 of those patients, an accurate localization of lesions could be made.…”

Section: Discussionmentioning

confidence: 99%

Neuropsychological abnormalities in children with the Panayiotopoulos syndrome point to parietal lobe dysfunction

Lopes¹,

Simões²,

Leal³

2014

Epilepsy & Behavior

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Panayiotopoulos syndrome (PS) is a common epilepsy syndrome associated with rare clinical seizures and unknown localization of the epileptogenic area. Despite findings of normal development in patients with PS, recent neuropsychological studies point to subtle and diverse cognitive impairments. No well-outlined hypothesis about the localization of the brain dysfunction responsible for these impairments has been proposed. We further explored the cognitive dysfunctions in PS and made inferences on the most likely anatomical localization of brain impairment. A group of 19 patients (aged 6-12) with PS was rated according to spike activity and lateralization. The patients were submitted to a neuropsychological evaluation to assess general intelligence, memory, language, visual-perceptual abilities, attention, and executive functions. Using 35-channel scalp EEG recordings, the N170 face-evoked event-related potential (ERP) was obtained to assess the functional integrity of the ventral pathway. All patients with PS showed normal IQ but subtle and consistent neurocognitive impairments. Namely, we found abnormalities in the copy task of the Rey-Osterrieth Complex Figure and in the Narrative Memory Test. There was no correlation between neuropsychological impairments with spike activity and hemispheric spike lateralization. The N170 ERP was normal in all patients except for one. Our neuropsychological findings demonstrate impairments in visual-perceptual abilities and in semantic processing. These findings, paired with the absence of occipital lobe dysfunction in all neuropsychological studies of PS performed to this date, support the existence of parietal lobe dysfunction.

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“…This behavior has been already mentioned in early studies on constructional apraxia [27,178,179] and has been reported, although rarely, in subsequent descriptions of patients with brain lesions. From a consecutive unselected series of 240 neurological patients, Solms et al [180] identified 16 patients who reproduced the ROCF with its major axis vertically rotated, independently from accuracy in reproducing spatial relationships among inner elements. Seven of these patients had diffuse cerebral involvement, but all remaining cases showed a lesion involving frontal regions.…”

Section: Rotationmentioning

confidence: 99%

“…Seven of these patients had diffuse cerebral involvement, but all remaining cases showed a lesion involving frontal regions. The authors suggested that this behavior could reflect the lack of planning and verification abilities of frontal patients [180]. In another case series of patients with AD, rotation of one or both items of the MMSE interlocking pentagons was reported in about 5% of patients [181].…”

Section: Rotationmentioning

confidence: 99%

Drawing Disorders in Alzheimer’s Disease and Other Forms of Dementia

Trojano

Gainotti

2016

JAD

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Abstract. Drawing is a multicomponential process that can be impaired by many kinds of brain lesions. Drawing disorders are very common in Alzheimer's disease and other forms of dementia, and can provide clinical information for the distinction of the different dementing diseases. In our review we started from an overview of the neural and cognitive bases of drawing, and from a recollection of the drawing tasks more frequently used for assessing individuals with dementia. Then, we analyzed drawing disorders in dementia, paying special attention to those observed in Alzheimer's disease, from the prodromal stages of the amnesic mild cognitive impairment to the stages of full-blown dementia, both in the sporadic forms with late onset in the entorhino-hippocampal structures and in those with early onset in the posterior neocortical structures. We reviewed the drawing features that could differentiate Alzheimer's disease from vascular dementia and from the most frequent forms of degenerative dementia, namely frontotemporal dementia and Lewy body disease. Finally, we examined some peculiar aspects of drawing disorders in dementia, such as perseverations, rotations, and closing-in. We argue that a careful analysis of drawing errors helps to differentiate the different forms of dementia more than overall accuracy in drawing.

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Rotated Drawing: The Range of Performance and Anatomical Correlates in a Series of 16 Patients

Cited by 57 publications

References 18 publications

A particular difficulty in discriminating between mirror images

A particular difficulty in discriminating between mirror images

Neuropsychological abnormalities in children with the Panayiotopoulos syndrome point to parietal lobe dysfunction

Drawing Disorders in Alzheimer’s Disease and Other Forms of Dementia

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