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Related Experiment Video

Updated: May 25, 2025

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Relationship Between Auditory Distraction and Emotional Dimensionality for Non-Speech Sounds.

Shae D Morgan1, Erin M Picou2, Elizabeth D Young3

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Task-irrelevant sounds, especially those with emotional valence, significantly impair word recognition and increase listening effort. Understanding sound

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Area of Science:

  • Auditory perception and cognition
  • Psychology of attention
  • Human-computer interaction

Background:

  • Task-irrelevant sounds can distract from speech, reducing performance and increasing listening effort.
  • Previous studies often used non-speech sounds with varying emotional content, potentially influencing distraction.
  • The emotional characteristics (arousal and valence) of sounds may play a role in auditory distraction.

Purpose of the Study:

  • To investigate the relationship between the arousal and valence of task-irrelevant auditory stimuli and their impact on auditory distraction.
  • To determine if stimulus characteristics of arousal or valence affect word recognition or verbal response times (listening effort).
  • To analyze how emotional content of sounds influences distraction from speech.

Main Methods:

  • An online listening task involved 19 young adults rating the valence and arousal of non-speech sounds.
  • Existing word recognition and verbal response time data were reanalyzed using these ratings.
  • Correlation analyses examined relationships between stimulus ratings and behavioral measures of distraction.

Main Results:

  • Task-irrelevant stimuli negatively impacted word recognition, particularly exciting sounds (in noise) and calming sounds (in quiet).
  • All task-irrelevant sounds significantly increased verbal response times (listening effort) by over 200 msec.
  • Valenced stimuli showed the largest distraction effect on response times; valence correlated with reduced word recognition in quiet.

Conclusions:

  • Task-irrelevant sounds with emotional valence or high arousal can impair speech perception and increase cognitive load.
  • The emotional content of auditory stimuli is a critical factor in understanding distraction effects.
  • Future research should incorporate the emotional characteristics of sounds when assessing auditory distraction.