Neuroscience

eLife Assessment

This paper provides solid electrophysiological evidence that an individual's effort expenditure increases the subjective value of a subsequent reward when the beneficiary is the individual themselves, but decreases the subjective value of a reward when the beneficiary is someone else. These findings have valuable implications for our understanding of how effort investment shapes reward evaluation during prosocial behavior.

eLife Assessment

This fundamental study substantially advances our understanding of sibling chimerism in marmosets by demonstrating that chimerism is limited to hematopoietic cells. The evidence supporting these findings is compelling, demonstrated through comprehensive analyses, including single-cell RNA-seq data from multiple individuals and tissues. A few minor concerns were successfully addressed in a revision. The work will be of broad interest to many fields of biology.

eLife Assessment

This well-designed study offers important insights into the development of infants' responses to music based on the exploration of EEG neural auditory responses and video-based movement analysis. The compelling results revealed that evoked responses emerge between 3 and 12 months of age, but no age group demonstrated evidence of coordinated movements to music. This study will be of significant interest to developmental psychologists and neuroscientists, as well as researchers interested in music processing and in the translation of perception into action.

eLife Assessment

This important work examines the effects of gaze on valuation signals in the human brain as participants choose between bundles of sequentially presented items food items. The paper provides convincing analyses of how gaze affects participants choice behaviour and how this varies across time. The work will be of interest to neuroscientists working on attention and decision-making.

eLife Assessment

This manuscript provides a valuable contribution by identifying a stress-responsive circuit and its regulation of anxiety-related behaviors. The evidence is convincing that the supramammillary nucleus contains stress-responsive neurons that increase anxiety-like behaviors when activated, and that ventral subiculum projections to the supramammillary are also activated by stress and their inhibition alleviates some effects of stress. Evidence that this pathway encodes and is functionally specific to anxiety is, at present, not sufficiently support and will require future studies. This work offers new insights into how distinct circuits are activated by stress and can regulate emotional behaviors and will be of interest to those interested in brain systems of aversive emotional and behavioral states.

eLife Assessment

This study presents a well-executed investigation into how the olfactory system disconnects from the environment during sleep and anesthesia, identifying a potential gating mechanism at the earliest synaptic stages of the olfactory bulb. The findings are important, as they challenge current theories by demonstrating that sensory gating occurs in non-thalamic pathways even under controlled airflow conditions. The strength of evidence is solid, supported by rigorous multimodal recordings, although the reliance on anesthetic models to draw conclusions about natural sleep is a limitation that requires further contextualization.

eLife Assessment

The study investigates an emerging research field: the interaction between sleep and development. The authors used Drosophila larvae sleep as a study model and provide insight into how neuropeptide circuitry control sleep differentially between larvae and adult Drosophila. By using board range of behaviour and imaging methods and analysis, the authors provide a valuable investigation that demonstrates a larvae-specific sleep regulatory neural pathway of Hugin-PK2-Dilps in the Drosophila neurosecretory centre IPC. While some further text clarifications are still required, the revision presented convincing evidence supporting the claims with the new imaging data, sleep parametric analysis, and further clarification addressing the reviewers' comments.

eLife Assessment

This important article reports on the role of specific interneurons in the motion processing circuitry of the fruit fly, and marshals convincing evidence from neural recording, genetic manipulation, and behavioral analysis. A significant result ties the activity of C2/C3 neurons to the temporal resolution of the motion vision system. It remains unclear whether disrupting this pathway affects the dynamics of vision more generally.

eLife Assessment

These findings are among some of the first to identify a behavioral and neurobiological substrate that disentangles nonassociative from associative fear responses following stress, providing a fundamental push forward in the field. The evidence supporting this is compelling and uses a variety of conceptual and technological approaches. This investigation will be of interest to neuroscientists and behaviourists broadly, as well as clinicians for its relevance to post-traumatic stress disorder.

eLife Assessment

This important study links blood-derived dietary content to sustained increases in sleep in the mosquito Aedes aegypti. Using multiple independent approaches, the authors provide convincing evidence for blood-induced changes in sleep. These findings have broad implications for understanding how specialized diets regulate sleep across species and for mosquito vector biology.