Cambios en los estados de quimera cognitiva en las redes cerebrales humanas con la edad: variaciones en la
Andrew Patton1, Jörn Davidsen1,2
1Department of Physics and Astronomy, University of Calgary, Calgary, Alberta, Canada.
PLoS computational biology
|September 2, 2025
Resumen
Los cerebros envejecidos muestran flexibilidad dinámica en la sincronización de la región cerebral, con estados de quimera cruciales para equilibrar la integración cognitiva y la segregación. Esta flexibilidad puede reflejar mecanismos compensatorios contra el deterioro cognitivo, aunque el envejecimiento impacta los sistemas cognitivos de manera diferente.
Área de la Ciencia:
- La neurociencia
- Ciencias cognitivas
- Biología computacional
Sus antecedentes:
- El envejecimiento cerebral implica cambios estructurales y funcionales, pero no está claro cómo estos afectan las capacidades cognitivas a través de los patrones de actividad cerebral.
- El rendimiento cognitivo se basa en el cambio dinámico entre la integración cerebral y la segregación.
- Los estados quimera, que representan la sincronización parcial, se proponen para capturar esta flexibilidad dinámica.
Objetivo del estudio:
- Investigar los cambios relacionados con la edad en la flexibilidad dinámica entre la integración cognitiva y la segregación.
- Para explorar el papel de los estados de quimera en el envejecimiento neurocognitivo.
- Para entender cómo el envejecimiento afecta diferencialmente a varios sistemas cognitivos.
Principales métodos:
- Utilizó un marco basado en la sincronización y modelos cognitivos informados.
- Se analizaron conjuntos de datos transversales a gran escala de cohortes sanas.
- Investigó variaciones relacionadas con la edad en estados de quimera y patrones de sincronización.
Principales resultados:
- Los estados de quimera son críticos para mantener el equilibrio entre la integración cognitiva y la segregación durante el envejecimiento.
- El envejecimiento afecta a diferentes sistemas cognitivos de manera única, con distintas tendencias de sincronización observadas.
- La flexibilidad dinámica aumenta generalmente en los grupos de edad mayores, lo que podría indicar mecanismos compensatorios o desdiferenciación.
Conclusiones:
- Los estados quiméricos ofrecen nuevos conocimientos sobre el deterioro cognitivo y los mecanismos de preservación en el envejecimiento.
- La comprensión de los patrones de envejecimiento específicos del sistema es esencial para una visión integral del envejecimiento neurocognitivo.
- La dediferenciación y la diferenciación pueden coexistir en diferentes sistemas cognitivos durante el envejecimiento.
Más Videos Relacionados
08:29Symmetric Bihemispheric Postmortem Brain Cutting to Study Healthy and Pathological Brain Conditions in Humans
Published on: December 18, 2016
14.1K
10:13Assessment of Age-related Changes in Cognitive Functions Using EmoCogMeter, a Novel Tablet-computer Based Approach
Published on: February 14, 2014
13.8K
Videos de Conceptos Relacionados
01:30Cognitive Development During Adulthood
255
Cognitive development continues throughout adulthood, undergoing significant shifts across early, middle, and late stages. Individual transition occurs from adolescent idealism to pragmatic and adaptable thinking in early adulthood. During this period, individuals learn to integrate personal beliefs with the recognition that other perspectives are equally valid. Exposure to the complexities of modern society, diverse experiences, and higher education contribute to this adaptive thought process,...
255
01:17Cognitivism
1.7K
Cognitive psychology emerged as a significant field in the mid-20th century. It focused on understanding humans' internal mental processes. This approach emphasizes how people perceive, remember, think, and solve problems—elements critical to human cognition.
Previously dominated by behaviorism, which prioritized observable behaviors and largely ignored mental processes, psychology transformed in the 1950s. Cognitive psychologists argue that understanding how we think and process...
Previously dominated by behaviorism, which prioritized observable behaviors and largely ignored mental processes, psychology transformed in the 1950s. Cognitive psychologists argue that understanding how we think and process...
1.7K
01:20Introduction to Cognitive Psychology
796
Cognitive psychology is the field of psychology dedicated to examining how people think. It attempts to explain how and why we think the way we do by studying the interactions among human thinking, emotion, creativity, language, and problem-solving, as well as other cognitive processes. Cognitive psychology studies how information is processed and manipulated in remembering, thinking, and knowing.
This field emerged in the mid-20th century, following a period dominated by behaviorism, which...
This field emerged in the mid-20th century, following a period dominated by behaviorism, which...
796
01:24Revisionist Views of Adolescent and Adult Cognition
98
A revisionist approach to Jean Piaget's theory of cognitive development has brought new insights that challenge and reinterpret his established ideas. Piaget proposed that the formal operational stage, emerging in adolescence, represents the culmination of cognitive maturity. During this stage, individuals are said to develop abstract thinking, engage in systematic problem-solving, and show a form of egocentrism, believing others are as preoccupied with their behavior as they are...
98
01:25Piaget's Theory of Cognitive Development from Childhood into Adulthood
309
Jean Piaget's theory of cognitive development emphasizes the role of thinking in a child's learning process, suggesting that children are naturally curious about their environment. His approach to development is discontinuous, proposing that cognitive abilities progress through distinct stages, each with unique characteristics. Central to Piaget's theory is schemata—mental structures that allow individuals to understand and interpret the world.
Schemata: Building Blocks of Knowledge
Schemata: Building Blocks of Knowledge
309
01:23Storage
131
A schema is a mental framework that helps individuals organize and interpret information. Schemata, formed from previous experiences, influence how we process new information: how we encode it, the inferences we make, and how we retrieve it. For instance, a schema for what a typical classroom looks like might include desks, a teacher's desk, a whiteboard, and students in such an environment. This expectation helps us quickly understand and navigate new classrooms without needing to analyze...
131