Neuroscience

eLife Assessment

This important study substantially advances our understanding of the neural circuits that regulate social behavior by identifying a population of hypothalamic neurons in the preoptic area that promote social interactions following short-term isolation. The evidence supporting the authors' claims is solid, with well-designed experiments using validated activity-dependent tagging and manipulation methods, though some differences in outcomes between experiments highlight limitations of the tagging approach. The work will be of broad interest to neuroscientists studying social behavior, neural circuit function, and hypothalamic mechanisms and will represent a meaningful contribution to the field.

eLife Assessment

This report used a new double knockout mouse model to investigate the role of two neuropeptides, substance P and CGRPa, in pain signaling. There is convincing evidence that double knockout of these two molecules, both of which have historically been associated with pain, does not affect nociception or acute pain behaviors in males and females. This finding is fundamental, as it challenges the hypothesis that these peptides are essential for pain transmission, even when targeted together. This paper will be of interest to those interested in the neurobiology of pain and/or neuropeptide function.

eLife Assessment

This valuable contribution combines high-resolution histology with magnetic resonance imaging in a novel way to study the organisation of the human amygdala. The main findings convincingly show the axes of microstructural organisation within the amygdala and how they map onto the functional organisation. Overall, the approach taken in this paper showcases the utility of combining multiple modalities at different spatial scales to help understand brain organisation.

eLife Assessment

This important study provides insights into the role of the cerebellum in fear conditioning, addressing a key gap in the literature. The evidence presented is solid overall, although the theoretical framing and clarity of the results can be improved and some concerns remain about the reliability of results based on small numbers of trials. This work will be of interest to both the extinction learning and cerebellar research communities.

eLife Assessment

This important study provides new evidence on the role of norepinephrine (NE) release in the hippocampus in response to environmental transitions (event boundaries), providing a potential link between NE signaling and the segmentation of episodic memories. The work is solid, employing innovative techniques such as fiber photometry with the GRAB-NE sensor for NE measurement, the analysis of public electrophysiology hippocampal datasets, and well-controlled experiments. While further analysis could strengthen some claims, this work offers insights into memory, neuromodulation, and hippocampal function.

eLife Assessment

This study examined the important question of how neurons code temporal information across the hippocampus, dorsal striatum, and orbitofrontal cortex. Using a behavioral task in the rat that requires discrimination between short and long time intervals, the authors conclude that time intervals are represented in all three regions and that synchronized activity of time-coding cells across the brain regions is coordinated by theta rhythms. However, several weaknesses are noted, and in its current form, the study provides incomplete evidence for understanding how temporal information is processed and coordinated throughout these brain networks.

eLife Assessment

This important study uses recently developed EEG analysis methods to investigate spatial distractor suppression in a combined visual search/working memory task. The reported results are compelling, although they are open to multiple interpretations. The study will be of interest to cognitive neuroscientists and psychologists working on visual attention and memory.

eLife Assessment

This study offers a valuable treatment of how the population of excitatory and inhibitory neurons integrates principles of energy efficiency in their coding strategies. The convincing analysis provides a comprehensive characterisation of the model, highlighting the structured connectivity between excitatory and inhibitory neurons. The role of the many free parameters are discussed and studied in depth.

eLife Assessment

In their important manuscript, Costa et al. establish an in vitro model for dorsal root ganglion (DRG) axonal asymmetry, revealing that central and peripheral axon branches have distinct patterns of microtubule populations that are linked to their differential regenerative capacities. The authors employ creative tissue culture methods to demonstrate how these branches develop uniquely in vitro, offering a potential explanation for long-observed regeneration disparities. The convincing evidence provides a contribution to our understanding of the neuronal cytoskeleton and axonal regeneration.

eLife Assessment

In this valuable manuscript, authors ablate cerebellar oligodendrocytes during postnatal development and show that synchrony of calcium transients in Purkinje neurons and behaviours are affected even at later stages. While the work is solid, it is incomplete in that the causal relationship between the two has not been sufficiently explored.