Video Experimental Relacionado
Updated: May 6, 2026
06:48
Lexical Decision Task for Studying Written Word Recognition in Adults with and without Dementia or Mild Cognitive Impairment
Published on: June 25, 2019
8.8K
Diferencias neuroanatómicas funcionales entre adultos y niños en edad escolar en el procesamiento de palabras
Bradley L Schlaggar1, Timothy T Brown, Heather M Lugar
1Department of Neurology, Washington University, St. Louis, MO 63110, USA. schlaggarb@neuro.wustl.edu
Science (New York, N.Y.)
|May 25, 2002
Resumen
Las diferencias cerebrales en niños y adultos que realizan tareas verbales sugieren una maduración incompleta de los patrones de activación cerebral a los 10 años. Este estudio de neurociencia cognitiva del desarrollo destaca los cambios relacionados con la edad en la neuroanatomía funcional.
Área de la Ciencia:
- Neurociencia cognitiva del desarrollo.
- La neurociencia es la neurociencia.
- La neurociencia cognitiva es la neurociencia cognitiva.
Sus antecedentes:
- Una pregunta clave en la neurociencia cognitiva del desarrollo es entender las diferencias en la neuroanatomía funcional entre niños y adultos durante las tareas cognitivas.
- Investigar los cambios relacionados con la edad en la función cerebral es crucial para comprender el desarrollo cognitivo.
Objetivo del estudio:
- Para comparar directamente los patrones de activación cerebral en adultos y niños que realizan tareas de procesamiento de una sola palabra.
- Para determinar si las diferencias observadas en la activación cerebral se deben a discrepancias de rendimiento o cambios de maduración en la neuroanatomía funcional.
Principales métodos:
- Adultos y niños (de 7 a 10 años) realizaron tareas visuales de procesamiento de una sola palabra.
- La activación cerebral en la corteza frontal izquierda y la corteza extrastriada se comparó entre los grupos de edad.
Principales resultados:
- Se encontraron diferencias significativas en la activación cerebral en regiones frontales y extrastriadas específicas entre adultos y niños.
- Algunas diferencias observadas relacionadas con la edad en la activación cerebral fueron independientes del desempeño de la tarea, lo que indica efectos de maduración.
Conclusiones:
- La neuroanatomía funcional para el procesamiento de textos muestra cambios en el desarrollo entre la infancia y la edad adulta.
- Los patrones de activación cerebral para estas tareas parecen estar aún madurando en niños de hasta 10 años.
Videos de Conceptos Relacionados
01:10Higher Mental Functions of the Brain: Language
6.0K
Language is a system of communication that allows the expression of thoughts, ideas, and feelings. The brain processes language in both hemispheres.
Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...
Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...
6.0K
01:27Language and Cognition
905
Language serves as a bridge between ideas and communication, influencing how individuals perceive and interact with the world. Psychologists have long debated whether language shapes thought or vice versa. This discussion gained grip with Edward Sapir and Benjamin Lee Whorf in the 1940s, who proposed that language determines thought, a concept known as linguistic determinism. They suggested that the vocabulary and structure of a language influence how its speakers think and perceive reality.
905
01:24Working Memory
1.3K
Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this...
1.3K
01:18Cognitive Development During Adolescence
1.0K
During adolescence, individuals experience significant cognitive development that enhances their understanding of others' emotions and thoughts, known as cognitive empathy. This period is marked by an increased ability to adapt to others' perspectives and a more nuanced understanding of others' mental states, a skill that is foundational for social problem-solving and conflict avoidance. The development of cognitive empathy relies heavily on the theory of mind — the...
1.0K
01:30Cognitive Development During Adulthood
1.4K
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,...
1.4K
01:30Information Processing Approach
891
The information-processing theory of cognitive development centers on fundamental mental processes, including attention, memory, and problem-solving skills. Researchers in this field examine how cognitive abilities, such as working memory, evolve and influence children's overall development. Studies indicate that children with stronger working memory tend to excel in reading comprehension, math, and problem-solving compared to peers with less efficient memory skills. Low working memory is...
891