Neuroscience

eLife Assessment

The manuscript by Hawes et al. provides important findings on how striatal projection neurons regulate spontaneous locomotion speed in the context of implicit motivation and distinct contextual valence. Overall, the evidence for the findings is solid, although evidence for the claim that striatonigral projections from the matrix and patches have functionally opposing roles is incomplete. This work will be of broad interest to neuroscientists in the basal ganglia, movement control, and cognition fields.

eLife Assessment

This manuscript provides fundamental new insight into the mechanisms linking photoperiod, reproduction function, and feeding activity, using medaka, a genetic model that itself exhibits photoperiodic responses. As well as identifying key neuropeptide genes that are regulated by photoperiod and involved in regulating feeding activity, the authors establish a knockout line for agrp1 using CRISPR Cas9 - based approach, profiting from the extensive use and development on this methodology in medaka. The combination of the RNAseq and quantitative in situ hybridization analysis with the knockout results as well as the study of ovariectomized fish provides compelling evidence implicating agrp1 in feeding regulation in response to photoperiod and reproductive status.

eLife Assessment

TDP-43 mislocalization is a key feature of some neurodegenerative diseases, but cellular models are lacking. The authors endogenously-tagged TDP-43 with a C-terminal GFP tag in human iPSCs, followed by expression of an intrabody-NES that targeted GFP to the cytosol. They convincingly report physical mislocalization and functional depletion of TDP-43, as measured by microscopy and RNAseq. This method will be valuable to investigators studying the biological consequences of TDP-43 mislocalization and the methodology is in line with the current state-of-the-art.

eLife Assessment

These are valuable findings for those interested in how neural signals reflect auditory speech streams, and in understanding the roles of prediction, attention, and eye movements in this tracking. However, the evidence as it stands is incomplete. Further analyses are needed to clarify how the observed results relate to the relevant theoretical claims.

eLife Assessment

The ExA-SPIM methodology developed here and characterized and supported by convincing evidence is an important development for the field of light sheet microscopy as the new technology provides an impressive field of view making it possible to image the entire expanded mouse brain at cellular and subcellular resolution.

eLife Assessment

This is an important study introducing a stimulus-computable model of multisensory perception that extends an existing framework to accept raw, stimulus-level inputs (i.e., image- and soundscape-computable). The author demonstrates how low-level correlation detection can drive both illusions and cue integration, and the model bridges diverse stimuli, behaviors, and species. The model and evidence provided are deemed generally convincing and of broad applicability, potentially impacting areas across neuroscience, psychology, and computational cognitive science. There are, however, certain aspects of the work considered incomplete, particularly as they relate to explaining details pertinent to model fitting.

eLife Assessment

This important study of the inhibitory complex amacrines (CAM) in the vertical lobe of Octopus vulgaris delivers a solid standard for the structural characterization of an anatomical region likely to be key for memory processing in this unconventional but complex organism, as well as a helpful classification of CAM subtypes. This work will be of broad relevance to the fields of memory and evolutionary neuroscience.

eLife Assessment

The fundamental findings reported here provide insight into how the viscoelasticity of the fingertip skin influences the activity of mechanoreceptive afferents and thus the neural coding of force in humans. The basic principle studied was whether and to what extent the previous applied force directions impact the firing of FA-1, SA-1 and SA-2 neurons during the current applied force directions. The data and analyses are compelling and will be helpful for modeling the neural representations of force in the context of object grasping and manipulation.

eLife Assessment

This important study examines the neuronal mechanisms underlying visual perception of integrated face and body cues. The innovative paradigm, which employs monkey avatars in combination with electrophysiological recordings from fMRI-defined brain areas, provides compelling evidence on face and body integration. These results should be of wide interest to system and cognitive neuroscientists, psychologists, and behavioural biologists working on visual and social cognition.

eLife Assessment

Some delayed rectifier currents in neurons are formed by the combination of Kv2 and silent subunits, KvS. However, we lack the tools to identify these heteromeric channels in vivo. In this important study by the Sack group, the authors identify a pharmacological tool that can reveal the presence of KvS subunits as components of the delayed rectifier potassium currents in selected neurons. The experimental evidence presented in the manuscript is compelling and represents a significant advance that should be of interest to a wide community of neuroscientists and channel physiologists.