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Updated: Aug 4, 2026
Psychophysiological Stress Assessment Using Biofeedback
Published on: July 31, 2009
Biodesensitization: biofeedback-controlled systematic desensitization of the stress response to infant crying
1Department of Psychology, Brock University, St. Catharines, Ontario, Canada.
Insights
Stress management training, including biofeedback, effectively reduced parental stress and anxiety from infant crying. This technique may help prevent child abuse by managing physiological hyperreactivity to crying stimuli.
Area of Science:
- Psychology
- Neuroscience
- Child Development
Background:
- Infant crying is a significant source of parental psychological and physiological stress.
- This stress can be a precursor to child neglect or abuse.
- Biodesensitization offers a novel therapeutic approach for stressor control and self-regulation.
Purpose of the Study:
- To investigate the efficacy of stress management training, specifically biodesensitization with EEG biofeedback, in reducing physiological and psychological responses to infant crying.
- To determine if pretraining interventions influence the effectiveness of biodesensitization.
- To explore the relationship between physiological arousal (EEG) and perceived stress/anxiety during infant crying.
Main Methods:
- 15 female participants were randomly assigned to three groups: EEG biofeedback without stress, pretraining with crying, or no pretraining with crying.
- All participants underwent biodesensitization training while listening to infant crying.
- Electroencephalography (EEG) was used to measure cortical arousal, alongside self-reported anxiety and perceived arousal.
Main Results:
- Stress management training significantly reduced EEG cortical arousal, perceived arousal, and anxiety compared to controls habituated to crying.
- The shift in EEG power spectrum due to infant crying correlated with perceived arousal.
- This correlation was strengthened after biofeedback training, indicating enhanced self-regulation.
Conclusions:
- Stress management training, particularly with EEG biofeedback, can effectively mitigate aversive responses to infant crying.
- This therapeutic approach holds potential for preventing child abuse by addressing parental physiological hyperreactivity.
- Biodesensitization shows promise as an intervention for managing stress responses in parents.
Abstract:
Infant crying can be a source of parental stress both psychologically and physiologically and also may be an antecedent to physical child abuse or neglect. Biodesensitization is a new therapeutic technique that allows people to control the source of stress and develop self-control over their physiological responses to the stress-eliciting stimuli. Randomly assigned between three groups, 15 female participants were either given EEG biofeedback pretraining without stress, pretraining while listening to infant crying, or no stress management pretraining while listening to crying. After the pretraining manipulation all participants had biodesensitization training while listening to infant crying. Compared to control participants who were habituated to crying, stress management training significantly reduced the EEG cortical arousal as well as perceived arousal, and anxiety associated with listening to infant crying. The shift in participants' EEG power spectrum produced by infant crying was significantly correlated with perceived arousal and this relationship was strengthened after biofeedback training. In conjunction with other research, the experimental results suggest that stress management training may help ameliorate an aversive response to infant crying and possibly prevent child abuse as a response to physiological hyperreactivity.
