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Cambio de concepto inducido por la prevalencia en el juicio humano

David E Levari1, Daniel T Gilbert2, Timothy D Wilson3

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La reducción de los problemas sociales puede, paradójicamente, aumentar su prevalencia percibida. Este "cambio de concepto inducido por la prevalencia" hace que los problemas parezcan más intratables, incluso cuando la gente trata de resistirse.

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Área de la Ciencia:

  • Psicología cognitiva
  • Psicología social
  • Ciencia de la percepción

Sus antecedentes:

  • Los problemas sociales a menudo parecen intratables y resistentes a las soluciones.
  • Comprender los mecanismos psicológicos detrás de esta intratabilidad es crucial.

Objetivo del estudio:

  • Investigar cómo los cambios en la prevalencia del estímulo afectan la percepción del concepto.
  • Explorar el fenómeno del cambio de concepto inducido por la prevalencia (PIC-C).

Principales métodos:

  • Los participantes estuvieron expuestos a diferentes frecuencias de estímulos (por ejemplo, colores, caras, peticiones).
  • Se utilizaron tareas de categorización para evaluar los límites de los conceptos.
  • Se emplearon advertencias e incentivos para probar la solidez del efecto.

Principales resultados:

  • La disminución de la prevalencia de estímulos condujo a la expansión del concepto.
  • Los participantes recategorizaron los estímulos en la categoría objetivo cuando se volvieron raros (por ejemplo, viendo púrpura como azul).
  • Este efecto persistió a pesar de las advertencias y los incentivos financieros.

Conclusiones:

  • El cambio de concepto inducido por la prevalencia es un sesgo cognitivo robusto.
  • La reducción de la prevalencia de los problemas sociales puede aumentar inadvertidamente su alcance percibido.
  • Este mecanismo psicológico podría contribuir a la intratabilidad de los problemas sociales.