This dataset includes 3D scanning electron microscopy (SEM) images of a female mouse corpus callosum and MATLAB code for random walker (RaW) segmentations of myelinated axons. The code additionally characterizes inner axonal diameters and fiber orientation dispersion within segments of the intra-axonal spaces and myelin sheaths. In the study, a female 8-week-old C57BL/6 mouse was perfused trans-cardiacally...

The investigators collected simultaneous recordings using multi-channel electrode arrays attached to the prearcuate gyrus of macaque monkeys who performed a direction discrimination task with fixed stimulus duration. In the study, 96-channel multielectrode arrays were used to record from neural populations in area 8Ar of the prearcuate gyrus of three macaque monkeys, while they performed a direction...

The dataset contains data collected from twelve Balb/c mice with metastatic breast cancer (4T1 mammary tumors). Six mice were in the control group and six mice were treated with 5-Fluorouracil (5FU) for metronomic chemotherapy for two weeks. Diffusion MRI (dMRI) and Dynamic Contrast-enhanced MRI (DCE-MRI) images were collected at baseline and post-treatment. Immunohistochemically (IHC) stains and measurements...

Electrophysiological recordings were obtained from male rats who were subjected to localized cooling of their medial septum (MS) prior to completing behavioral tasks. The MS is critical in theta generation. Therefore, temperature manipulation of the MS was used to test these models. Approximately 40 control trials were completed, followed by exposure to dry ice to reduce MS temperature for 20 to 60...

The Buzsáki Lab has shared designs for a 3D-printed metal microdrive and head cap system for freely-moving rodents and sample electrophysiological recordings. The modular design allows for recovery and reuse of silicon probes in multiple experiments with mice and Long-Evans rats. The .step files for the metal microdrive are optimized for stainless steel 316L in 20 micrometer resolution and aluminum...

The investigators collected behavioral data from two macaque monkeys (M1 and M2) who were presented with a direction discrimination task with post-decision wagering. These monkeys received prior training to report the net direction of motion of a set of randomly moving dots. In each trial, the subject fixed their gaze on an initial fixation point, then red dots would appear on the periphery of the...

Using a Y-shaped maze, several experiments were developed to assess conditions of associative learning among fruit fly larvae. Prior to the start of the experiments, some fruit fly larvae were fed a diet of all-trans-retinal (ATR), which is a co-factor for csChrimson activation (eliciting escape behavior in flies which perceive red light). A subgroup of larvae who were fed ATR also received cycloheximide...

Dopamine is a critical modulator of brain circuits that control voluntary movements. However, its influence on the activity of target neurons in vivo remains limited. In this study, two-photon microscopy was used to monitor the activity of direct and indirect-pathway spiny projection neurons (SPNs) simultaneously in the striatum of behaving mice. The striatum mainly consists of two large populations...

This dataset was collected to study the genetic cause of craniofacial microsomia (CFM), which is the second most common congenital facial anomaly. In this study, they performed whole-exome or genome sequencing of 146 kindreds with sporadic (n = 138) or familial (n = 8) CFM. This is identified as a highly significant burden of loss of function variants in SF3B2, which is the most prevalent genetic cause...

This dataset showed that mitovesicles, extracellular vesicles (EVs) of mitochondrial origin, are altered in Down syndrome (DS). Mitochondrial dysfunction is a distinctive feature of aging and neurodegenerative disorders, such as DS and Alzheimer’s disease. For this study, a high-resolution density gradient separation of EVs isolated from murine and human DS and diploid control brains was used. Using...