Cognitive task

Cognitive tasks are those undertakings that require a person to mentally process new information (i.e., acquire and organize knowledge/learn) and allow them to recall, retrieve that information from memory and to use that information at a later time in the same or similar situation (i.e., transfer).

see cognitive task analysis.

Mandonnet et al. reported a case series of four patients operated on for a glioma in awake conditions and in whom task-based functional magnetic resonance imaging (fMRI) demonstrated right-dominant activity during a language production task. Language functional sites were identified intraoperatively by electrical stimulations only in the patient with a right-sided lesion. Furthermore, the pre- or postoperative cognitive evaluations in the three patients operated on for a left-sided glioma revealed right spatial neglect and dysexecutive syndrome, hence demonstrating that, in patients with right-dominant activity on language fMRI, the left hemisphere is implicated in spatial consciousness and cognitive control. This study supports the interest of presurgical task-based language fMRI to identify patients with a reversed lateralization of cognitive functions and to make an adequate selection of the battery of intraoperative cognitive tasks to be monitored in those rare outliers 1).

Mandonnet E, Mellerio C, Barberis M, Poisson I, Jansma JM, Rutten GJ. When Right Is on the Left (and Vice Versa): A Case Series of Glioma Patients with Reversed Lateralization of Cognitive Functions. J Neurol Surg A Cent Eur Neurosurg. 2020 Feb 17. doi: 10.1055/s-0040-1701625. [Epub ahead of print] PubMed PMID: 32066189.
  • cognitive_task.txt
  • Last modified: 2020/02/19 11:15
  • by administrador