Evaluated articles

eLife Assessment

This important study suggests that adolescent mice exhibit less accuracy than adult mice in a sound discrimination task when the sound frequencies are very similar. The evidence supporting this observation is solid and suggests that it arises from cognitive control differences between adolescent and adult mice. The adolescent period is largely understudied, despite its contribution to shaping the adult brain, which makes this study interesting for a broad range of neuroscientists.

eLife Assessment

Huang and colleagues examined neural responses in mouse anterior cingulate cortex (ACC) during a discrimination-avoidance task. The authors present useful findings that ACC neurons encode primarily post-action variables over extended periods rather than the outcomes or values of those actions. Though the methodological approach was sound, the evidence ruling out alternative explanations is incomplete and requires substantial control analyses.

eLife Assessment

This valuable study employs a formalized computational model of learning to assess memory deficits in Alzheimer's Disease with the goal of developing an early diagnosis tool. Using an established mouse model of the disease, the authors studied multiple behavioral tasks and ages with the goal of showing similarities in behavioral deficits across tasks. Using the model, the authors indicate specific deficits in memory (overgeneralization and over differentiation) in mice with the transgene for the disease. The evidence presented is solid, yet certain concerns remain regarding the interpretation of the results of the modeling.

eLife Assessment

This valuable study uses NAD(P)H fluorescence lifetime imaging (FLIM) to map metabolic states in the Drosophila brain. The authors reveal subtype-specific metabolic profiles in Kenyon cells and report learning-related changes, supported by solid evidence and careful methodology. However, the FLIM shifts observed after memory formation in α/β neurons are small and only weakly significant, so the ability of FLIM to detect subtle physiological changes still requires further validation. Nevertheless, this work provides a strong starting point and demonstrates the promising potential of FLIM for probing neural metabolism in vivo.

eLife Assessment

This study presents important information about the role of mu opioid receptors in neurotransmission between the medial habenula and the interpeduncular nucleus. The authors provide convincing evidence that mu opioid receptor activation has differential effects on transmission from substance P neurons and cholinergic neurons, and that blockade of potassium channels can unmask a nicotinic cholinergic synaptic response. This work will be of high interest to those studying this brain region, and potentially to the larger neuroscience community studying motivated behavior.

eLife Assessment

The medicinal leech preparation is an amenable system in which to understand the neural basis of locomotion. Here a previously identified non-spiking neuron was studied in leech and found to alter the mean firing frequency of a crawl-related motoneuron, which fires during the contraction phase of crawling. The findings are valuable and the experiments were diligently done and considered solid. The results lay a foundation for additional studies in this system.

eLife Assessment

This important study describes the effect of beta-glucan innate training of macrophages and its effect on uptake of tumour cells and on the production of inflammatory cytokines. The data are convincing and show decreased phagocytic activity of apoptotic tumour cells accompanied by lower levels of secreted IL-1β, and in vivo findings are also provided in the revision. This finding has potential impact on designing potential macrophage-targeted cancer immuno-therapeutic approaches.

eLife Assessment

Using fMRI-based pRF mapping, this important study presents a novel method to estimate visual field (VF) and VF loss/or potential restoration, through analysis of contrast sensitivity patterns in the early visual cortex. While the approach is very interesting and the evidence supporting the claims of the authors is solid, some methodological concerns need to be addressed. The work will be of interest to researchers in vision/clinical vision, neuroscience, and brain imaging.

eLife Assessment

This study aims to identify the proteins that make up the electrical synapse, which are much less understood than those of the chemical synapse. These findings represent an important step toward understanding the molecular function of chemical synapses and will have broad utility for the wider neuroscience field. The experimental evidence is convincing.

eLife Assessment

This valuable study shows that an odorant that is typically thought of as a repellant actually activates both attractant and repellant olfactory neurons in C. elegans. Solid evidence is provided that nematode worms can integrate signals using different pathways to drive different behavioral responses to the same cue. These findings will be of interest to scientists interested in combinatorial coding in sensory systems.

eLife assessment

The work is interesting in its characterization of a large number of antibiotic persisters from a wild-type strain. Previous work was typically limited to directly observe either high persister strains or a smaller number of wt persisters. Therefore, it sheds new light on the elusive non-dormant persisters present in exponentially growing cultures and should help resolve previous conflicting observations.

eLife Assessment

This important study shows that the Nora virus, a natural Drosophila pathogen that also persistently infects many laboratory fly stocks, infects intestinal stem cells (ISCs), leading to a shorter life span and increased sensitivity to intestinal infection with the Pseudomonas bacterium. The authors provide convincing data to support their conclusions. The paper provides new insights into virus-host interactions in the Drosophila gut and serves as a warning for scientists who use the fruit fly as a model to study gut physiology.

eLife Assessment

This important research addresses the effects of subjective control and task difficulty on experienced stress using a novel behavioral task administered on the same day in two large online samples. Convincing evidence is provided, establishing the internal and external task validity of the task, as well as a relationship between the sense of control and task difficulty, with individual differences in relevant mental health constructs. Evidence for the specificity of the link between control and stress would be more substantial if the design had not conflated control and reward rate. This work will be of interest to psychologists and clinicians studying the concepts of controllability, stress, and psychopathology.

eLife Assessment

The manuscript provides valuable findings in the field for understanding the RNAi regulation in plants at the molecular level with a model of how DRB7.2 and DRB4 form a heterodimer and protect dsRNA from DICER activity. The presented data provide a solid basis for the model, but certain measurements could benefit from replicates for robust statistics.

eLife Assessment

In this manuscript, Franco and colleagues present compelling evidence that fecal extracts containing high concentrations of indole, a known repellent, enhance rather than protect against invasion of colonic tissue by Salmonella. The authors describe important findings that lead to the conclusion that the competing effects of attractants present in fecal matter, including L-serine, also sensed by the Tsr chemoreceptor that senses indole, override the repulsive effect of indole.

eLife Assessment

This study presents a valuable finding on the delivery of a nuclear envelop protein to lysosomes and the impact of C-terminal tagging on its traffic. The authors provide solid evidence for the potential artifacts introduced by large terminal tags, particularly in the context of membrane protein localization and stability.

eLife Assessment

This important model-based study seeks to mimic bat echolocation behavior and flight under conditions of high interference, such as when large numbers of bats leave their roost together. The simulations convincingly suggest that the problem of acoustic jamming in these situations may be less severe than previously thought. This finding will be of broad interest to scientists working in the fields of bat biology and collective behaviour.

eLife Assessment

The authors propose that the kinase MARK2 regulates the Golgi's reorientation towards the cell's leading edge through the regulation of microtubule binding protein CAMSAP2 and its binding to USO1. While the model is interesting and the study is useful, the quantification of an insufficient number of cells and insufficient description of the methods and biological replicates mean the results are inadequate to support the model.

[Editors' note: this paper was reviewed by Review Commons.]

eLife Assessment

This study provides compelling evidence that kinesin's stepping mechanism is governed by strain-induced conformational changes in its nucleotide-binding pockets. Using pre-steady state kinetics and single-molecule assays, the authors demonstrate that the neck linker's conformation differentially modulates nucleotide affinity and detachment rates, establishing an asynchronous chemo-mechanical cycle that prevents simultaneous detachment. Supported by cryo-EM structural data, the work presents an important advance in our understanding of kinesin's hand-over-hand movement.

[Editors' note: this paper was reviewed by Review Commons.]