Modulación de reflejos defensivos por claves contextualesefecto de la luz-oscuridad ambiental

  1. Sánchez, María Blasa
  2. López, Francisca
  3. Vila Castellar, Jaime
  4. Fernández Santaella, María del Carmen
Revista:
Acción psicológica

ISSN: 1578-908X

Año de publicación: 2002

Volumen: 1

Número: 2

Páginas: 121-134

Tipo: Artículo

DOI: 10.5944/AP.1.2.547 DIALNET GOOGLE SCHOLAR

Otras publicaciones en: Acción psicológica

Resumen

The results of a study aimed to examine the effect of manipulating environmental lightdarkness on the amplitude of two defensive reflexes �the startle motor reflex and the cardiac defense response� are presented. Using a between group design, four light levels were manipulated: complete darkness (0 Lux), penumbra (11 lux), medium light (175 lux) and intense light (1225). 60 volunteer student women participated in the study (15 per group). Both reflexes were examined, presenting a white noise of 105 dB, 500 millisecond duration and instantaneous risetime five occasions. The results show a potentiation of the cardiac defense response under conditions of darkness-penumbra, as compared to conditions of medium-intense light. These results are discussed under of Peter J. Lang�s motivational priming theory and the neurophysiological differentiation between fear and anxiety.

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Fuente de los datos: Dialnet