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Stress can destroy your sensory power, read details

Currently reading: Stress can destroy your sensory power, read details
[Updated:04 October 2017 16:59]
Stress can destroy your sensory power, read details

Stress may diminish our ability to sense new dangers

Scientist warned that "Contrary to the conventional view that stress enhances our ability to detect sources of threat, and discovered that it diminishes the ability to predict new dangers. The scientist indicated that stress reduces physiological response to the new threat cue.

A postdoctoral researcher said, “Our study shows that when we are under stress, we pay less attention to changes in the environment, potentially putting us at an increased risk for ignoring new sources of threat,” .

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The scientist conducted a series of experiments to test the ability to know the flexibly update threat responses under stressful conditions. Here, the participants viewed images on a computer screen. The appearance of some images was coupled with a mild, electric wrist-shock.
Half of the participants underwent a laboratory procedure a day later designed to induce stress. "This “stress group” placed their arm in an ice-water bath for a few minutes, which elevated the two stress hormones alpha-amylase and cortisol."
Experiment found that ,"The earlier threatening cue no longer predicts shock, but the formerly safe cue did. While the participants viewed the images, the researchers collected physiological arousal responses in order to measure how individuals anticipated the outcome of each cue."
"On the second day, the “stress group” was less likely to change their responses to threats than the control group."  Later the study published in the journal Proceedings of the National Academy of Sciences suggested that participants did not fully switch their association with this cue from safe to threatening.