We report the clinical case of AB, a right-handed 19-year-old woman who presents severe developmental topographical disorientation, a relatively rare syndrome, leading to difficulties in navigating in familiar (and novel) environments. This symptomatology appears without acquired cerebral damage (MRI described as normal) nor more global cognitive disability (high degree of education achieved). An extensive assessment of spatial cognition with different aspects of underlying cognitive processes is first presented.
View Article and Find Full Text PDFIntroduction: Harmonized neuropsychological assessment for neurocognitive disorders, an international priority for valid and reliable diagnostic procedures, has been achieved only in specific countries or research contexts.
Methods: To harmonize the assessment of mild cognitive impairment in Europe, a workshop (Geneva, May 2018) convened stakeholders, methodologists, academic, and non-academic clinicians and experts from European, US, and Australian harmonization initiatives.
Results: With formal presentations and thematic working-groups we defined a standard battery consistent with the U.
Capgras syndrome (CS) is a delusional misidentification syndrome that is encountered in various pathologies. Here, we report the case of an 83-year-old woman affected by dementia with Lewy bodies who presented a CS during the disease. The neuropsychological assessment showed executive and face processing deficits.
View Article and Find Full Text PDFNavigating toward a goal and mentally comparing distances and directions to landmarks are processes requiring reading information off the memorized representation of the environment, that is, the cognitive map. Brain structures in the medial temporal lobe, in particular, are known to be involved in the learning, storage, and retrieval of cognitive map information, which is generally assumed to be in allocentric form, whereby pure spatial relations (i.e.
View Article and Find Full Text PDFThis multicenter retrospective study aimed at examining the clinical accuracy of four 15-item versions (Woodard's O and E; Quall's Q and S) of the original 30-item Benton judgment of line orientation test in a mixed clinical sample of 260 patients. It is a test frequently used as a measure of visuospatial processing. It has the advantage of requiring minimal motor skills, while a major weakness is the lengthy administration time.
View Article and Find Full Text PDFAppl Neuropsychol Adult
December 2020
Difficulty in navigating in a well-known environment (i.e., topographical disorientation) is an incapacitating syndrome.
View Article and Find Full Text PDFAppl Neuropsychol Adult
August 2018
Topographical disorientation, the inability to orient in a well-known environment, is a very incapacitating syndrome. Despite its relatively high frequency after a right cerebral lesion, there is currently no specific neuropsychological test to assess it. We propose a completely new test, with preliminary normative data, assessing the subjects' ability to recall allocentric spatial information from their cognitive map.
View Article and Find Full Text PDFAppl Neuropsychol Adult
September 2016
There is currently no specific neuropsychological test assessing spatial orientation abilities, despite the fact that navigational deficits are heavily incapacitating in daily life. This lack of a specific test is probably due to theoretical vagueness of concepts in this field and important interindividual differences in spatial cognition. Here we propose a new standardized test assessing a fundamental component of spatial orientation-namely, mental imagery: Adequate mental visualization of the environment is indeed a necessary step in finding one's way.
View Article and Find Full Text PDFAppl Neuropsychol Adult
June 2016
A right posterior cerebral lesion can lead to an inability to orient and can consequently interfere with daily-life autonomy. Despite the wide literature about navigation abilities, it is still difficult to assess topographical disorientation (TD) because of the interindividual specificity of spatial knowledge and the diversity of symptoms. We describe here a set of new tests evaluating spatial cognition in a patient with TD presenting difficulties in navigating inside the hospital and in his hometown more than 3 years after his diffuse ischemic right Sylvian stroke.
View Article and Find Full Text PDFBackground: Smoke-related problems are particularly frequent in psychiatry, with additional concerns about iatrogenic effects on smoking in inpatient settings.
Aims: To study the impact of a partial smoking ban on psychiatric patients and staff members.
Methods: Using a pre- and post-intervention design, comparison of smoke-related characteristics and perceptions permitted changes after the introduction of smoking restrictions in 2002 to be studied.