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  • Efectos de controlabilidad y magnitud de ruido en comportamiento de evitación, cortisol salival y temperatura.

    Conductual.com

    This study evaluated the effect of noise magnitude and control on avoidance behavior, levels of saliva cortisol, and temperature. Participants were twelve males between 18 and 30 years old, assigned in incontrollable and controllable randomized conditions. The ELISA test was used for saliva analysis. Two samplings of saliva within a 40 minutes interval were obtained in a pre-measurement session. The experimental phase included five 20 minutes sessions in which the participants were instructed…

    This study evaluated the effect of noise magnitude and control on avoidance behavior, levels of saliva cortisol, and temperature. Participants were twelve males between 18 and 30 years old, assigned in incontrollable and controllable randomized conditions. The ELISA test was used for saliva analysis. Two samplings of saliva within a 40 minutes interval were obtained in a pre-measurement session. The experimental phase included five 20 minutes sessions in which the participants were instructed to press two keyboard keys in sequence in order to avoid the noise. On the incontrollable condition, any sequence of keys would not produce avoidance of the noise. In each session, participants received variations of 5 decibels around their tolerance threshold, which was previously obtained (increasing, decreasing or at random). Before and after each of the experimental sessions salivary samples and peripheral temperature measures were obtained. There was also a post-experiment measurement.
    The results showed more avoidance responses, a higher increment on cortisol and a higher decrement of temperature in the controllable group. On the uncontrollable group, a random subgroup showed increments in responses when magnitude of noise was higher. The findings are discussed in terms of the potential applications in the context of noisy urban areas.

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