Reply: Are recovery of fluency and recovery of phonology antagonistic?

Article Clinical Neurology

The low dimensionality of post-stroke cognitive deficits: it's the lesion anatomy!

Christoph Sperber et al.

Summary: For years, dissociation studies on neurological single-case patients with brain lesions were used to infer cognitive functions in neuropsychology, but the association between deficits was considered of less value. In contrast, computational methods such as principal component analysis became popular for identifying cognitive functions in stroke patients. However, the anatomy of stroke lesions alone influenced the dimensionality of data and limited the interpretability of cognitive deficits and insights into human cognitive architecture. It is suggested to use qualitative criteria and dissociation patterns to refine estimates and optimize interpretation strategies in cognitive deficit studies.

BRAIN (2023)

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Article Neurosciences

Resolution of diaschisis contributes to early recovery from post-stroke aphasia

Max Wawrzyniak et al.

Summary: Diaschisis is a phenomenon observed in stroke patients, characterized by neuronal dysfunction in regions connected to the infarction site but spared by the lesion. This study found that the resolution of diaschisis contributes to the early recovery of language function in patients with post-stroke aphasia.

NEUROIMAGE (2022)

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Article Behavioral Sciences

Efficient and effective assessment of deficits and their neural bases in stroke aphasia

Ajay D. Halai et al.

Summary: This study compared different types of multi-assessment batteries and tested a new data-driven reduced version. The results showed that the data-driven battery can save time while maintaining sensitivity, ability to grade deficits, and the underlying component structure observed in post-stroke aphasia.

CORTEX (2022)

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Article Neurosciences

Language networks in aphasia and health: A 1000 participant activation likelihood estimation meta-analysis

James D. Stefaniak et al.

Summary: Aphasia recovery post-stroke may not rely on novel recruitment of right hemisphere territory, but on the utilization of under-utilized regions within the language network. Regions such as the right anterior insula, frontal operculum, and inferior frontal gyrus were more likely to be activated in individuals with PSA than controls during language tasks.

NEUROIMAGE (2021)

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Review Clinical Neurology