AI Insight
This study examined how early-life unpredictability (exposure to chaotic or inconsistent environments during childhood) and anhedonia (reduced ability to feel or anticipate pleasure) jointly influence decision-making in 357 adults. Using a foraging-under-threat task that creates conflict between seeking rewards and avoiding danger, the researchers found that early-life unpredictability pushed individuals away from survival-optimal choices in a sex-dependent way, while anhedonia paradoxically promoted better adherence to those optimal choices, partly by increasing sensitivity to threatening outcomes. A mediation analysis further showed that anhedonia partially offsets the negative effects of early-life unpredictability on decision quality, suggesting that two commonly co-occurring conditions can mask each other's behavioral signatures.
Why it matters
These findings challenge the assumption that anhedonia is uniformly maladaptive, suggesting it may represent a context-dependent adaptation with functional consequences for decision-making. This has implications for how clinicians assess and treat transdiagnostic symptoms, particularly in individuals with adverse childhood experiences, as treating anhedonia in isolation could inadvertently unmask other decision-making vulnerabilities.
⚠️ Preprint – Noch nicht peer-reviewed
Dieser Artikel wurde noch nicht von unabhängigen Experten begutachtet. Die Ergebnisse sind vorläufig und sollten mit Vorsicht interpretiert werden.
Anhedonia-the diminished capacity to experience or anticipate pleasure-is among the most common consequences of early-life unpredictability, yet how these co-occurring conditions jointly shape real-world decision-making remains unknown. Here, we use a sequential foraging-under-threat task to probe motivational conflict decisions in 357 individuals varying in early-life unpredictability and anhedonia symptoms. We find that unpredictability and anhedonia exert opposing influences on choice: unpredictability shifts behavior away from the survival-optimal policy in a sex-dependent manner, while anhedonia promotes adherence to it, partly through heightened sensitivity to unexpected threatening outcomes. A mediation analysis reveals that anhedonia partially buffers the deleterious effects of unpredictability on decision quality. These results demonstrate that co-occurring conditions can mask one another’s behavioral signatures and suggest that the heterogeneous expression of transdiagnostic constructs like anhedonia may reflect context-dependent adaptations to distinct underlying etiologies.
Source: Anhedonia buffers the effects of early-life unpredictability on threat-reward decision-making.