Scientific studies link childhood trauma to anhedonia and examine adolescent social anxiety

Researchers have identified a neurological link between childhood trauma and anhedonia, the inability to experience pleasure, in adulthood. A study published in the ‘Journal of Neuroscience’ by scientists from Temple University and other US institutions suggests that trauma can disrupt brain pathways related to motivation. Using fMRI scans, researchers found that adults who experienced childhood trauma and showed changes in the hippocampus were more likely to suffer from anhedonia compared to those with trauma but no visible hippocampal changes.

In a separate study, researchers from Tufts University examined the relationship between adolescents and dogs regarding social anxiety. Analyzing 514 American teenagers aged 13–17, the study found that companionship and caring for a dog often correlated with healthier stress-coping strategies, such as emotional regulation. However, using a dog as a substitute for human interaction was linked to less effective coping mechanisms.