Browsing by Author "González, Raúl"
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Publication Author Correction: Neurocognitive correlates of semanticmemory navigation in Parkinson’s disease(2024) Toro, Felipe; Migeot, Joaquín; Marchant, Nicolás; Olivares, Daniela; Ferrante, Franco; González, Raúl; González, Cecilia; Fittipaldi, Sol; Rojas, Gonzalo; Moguilner, Sebastian; Slachevsky Chonchol, Andrea; Chaná, Pedro; Ibáñez, Agustín; Chaigneau, Sergio; García, AdolfoCorrection to: npj Parkinson’s Disease https://doi.org/10.1038/ s41531-024-00630-4, published online 9 January 2024. In this article the funding from ‘Latin American Brain Health Institute (BrainLat), Universidad Adolfo Ibáñez, Santiago, Chile, #BL-SRGP2021-01’ for author Adolfo M. García was omitted. The original article has been corrected.Publication Author Correction: the BrainLat project, a multimodal neuroimaging dataset of neurodegeneration from underrepresented backgrounds(2024) Prado, Pavel; Medel, Vicente; González, Raúl; Sainz, Agustín; Vidal, Víctor; Santamaría, Hernando; Moguilner, Sebastián; Mejía, Jhony; Slachevsky Chonchol, Andrea; Behrens, Maria Isabel; Aguillón, David; Lopera, Francisco; Parra, Mario; Matallana, Diana; Adrián, Marcelo; García, Adolfo; Custodio, Nilton; Ávila, Alberto; Piña, Stefanie; Birba, Agustina; Fittipaldi, Sol; Legaz, Agustina; Ibáñez, AgustínIn this article the author name Maria Isabel Behrens was incorrectly written as Maria Isabel Beherens. The original article has been corrected.Publication Neurocognitive correlates of semantic memory navigation in Parkinson's disease(2024) Toro, Felipe; Migeot, Joaquín; Marchant, Nicolás; Olivares, Daniela; Ferrante, Franco; González, Raúl; González, Cecilia; Fittipaldi, Sol; Rojas, Gonzalo; Moguilner, Sebastian; Slachevsky Chonchol, Andrea; Chaná, Pedro; Ibáñez, Agustín; Chaigneau, Sergio; García, AdolfoCognitive studies on Parkinson's disease (PD) reveal abnormal semantic processing. Most research, however, fails to indicate which conceptual properties are most affected and capture patients' neurocognitive profiles. Here, we asked persons with PD, healthy controls, and individuals with behavioral variant frontotemporal dementia (bvFTD, as a disease control group) to read concepts (e.g., 'sun') and list their features (e.g., hot). Responses were analyzed in terms of ten word properties (including concreteness, imageability, and semantic variability), used for group-level comparisons, subject-level classification, and brain-behavior correlations. PD (but not bvFTD) patients produced more concrete and imageable words than controls, both patterns being associated with overall cognitive status. PD and bvFTD patients showed reduced semantic variability, an anomaly which predicted semantic inhibition outcomes. Word-property patterns robustly classified PD (but not bvFTD) patients and correlated with disease-specific hypoconnectivity along the sensorimotor and salience networks. Fine-grained semantic assessments, then, can reveal distinct neurocognitive signatures of PD.