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Manifestaciones Clínicas

Sophia I Vecchi1, Martha Escobar1

  • 1Oakland University, Rochester Hills, MI, USA.

Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 25, 2025
PubMed
Resumen
Este resumen es generado por máquina.

Los pacientes con enfermedad de Alzheimer muestran memoria implícita preservada, específicamente condicionamiento evaluativo. Este estudio investiga si el aprendizaje emocional permanece intacto en personas con enfermedad de Alzheimer y diabetes tipo 2.

Palabras clave:
enfermedad de Alzheimermemoria implícitacondicionamiento evaluativoaprendizaje emocionaldiabetes tipo 2demencia

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Área de la Ciencia:

  • Neurociencia; Psicología; Gerontología

Sus antecedentes:

  • La enfermedad de Alzheimer (EA) se caracteriza por déficits en la memoria explícita pero preservación de la memoria implícita.
  • La memoria implícita, una forma de recuerdo inconsciente, juega un papel crucial en el funcionamiento diario.
  • El condicionamiento evaluativo, un tipo de memoria implícita, implica respuestas emocionales a estímulos emparejados con contenido emocional.

Objetivo del estudio:

  • Evaluar la preservación del condicionamiento evaluativo en adultos mayores con y sin enfermedad de Alzheimer (EA).
  • Determinar si las personas con diabetes tipo 2, un factor de riesgo para la EA, muestran diferencias en la memoria implícita.
  • Explorar la utilidad del condicionamiento evaluativo como herramienta para evaluar el aprendizaje emocional en la demencia.

Principales métodos:

  • Participaron adultos mayores (mayores de 65 años) con EA, diabetes tipo 2 (diabetes) o sin diagnósticos (control).
  • Los participantes se sometieron a una tarea de condicionamiento evaluativo que involucraba portadas de libros ficticios y resúmenes de historias.
  • El rendimiento se evaluó mediante predicción emocional implícita y recuerdo explícito de la historia.

Principales resultados:

  • Se espera que el grupo con EA muestre déficits en el recuerdo explícito pero con predicción emocional implícita intacta.
  • Se anticipa que el grupo con diabetes se desempeñará de manera similar al grupo de control en tareas implícitas, con posibles déficits en la memoria explícita.
  • El estudio tiene como objetivo confirmar la disociación entre la memoria explícita e implícita en la EA.

Conclusiones:

  • Se espera que el condicionamiento evaluativo se preserve en personas con EA, lo que demuestra un aprendizaje emocional implícito intacto.
  • Esta investigación puede establecer el condicionamiento evaluativo como un método valioso para evaluar el procesamiento emocional en la demencia.
  • Los hallazgos contribuirán a la comprensión de la función de la memoria en enfermedades neurodegenerativas y diabetes.