Each neuron in the primary motor cortex (M1) is like a musician in an orchestra, contributing to a larger harmony under the constraint of a “neural manifold”—a geometric score describing the correlated signals produced by the neural musicians that drive movement. Despite the widespread recognition of the importance of M1...
Chronic stress is a significant risk factor for the development of numerous psychiatric disorders, including major depressive disorder (MDD). Individuals with MDD exhibit impairments in reward processing and decreased motivation to engage in previously-rewarding activities. Importantly, there is a large sex disparity in MDD diagnosis, such that it affects nearly...
Temperature affects all biological processes, from the rate of cellular growth and metabolism to the stability of proteins that make up the machinery of life itself. Thus, all organisms must have the capacity to detect and respond to external temperature. Thermosensation endows animals with the ability to sense and respond...
Visual information plays a critical role in controlling movement. People use visual information to plan future actions and correct current actions through feedforward and feedback processes, respectively. We can gain insights into these visually guided motor control processes by quantifying where people look during movement and measuring how much they...
Genetic studies have found variants in the protein-degrading autophagy-lysosomal pathway (ALP) to be among the most common risk factors for developing Parkinson’s disease (PD). Macroautophagy (MA) is the arm of this pathway which delivers cytosolic components to lysosomes for degradation and is essential for neuronal health. The defining pathological protein...
The basal ganglia operate largely in closed parallel loops, including an associative circuit for goal-directed behavior originating from the dorsomedial striatum (DMS) and a somatosensory circuit important for habit formation originating from the dorsolateral striatum (DLS). An exception to this parallel circuit organization was proposed to explain how information is...
Different features of the visual world are conveyed to the retino-recipient regions of the brain by more than 40 types of retinal ganglion cells (RGCS). Feature detection by RGCs depends on a combination of intrinsic and morphological properties where the interplay of excitatory and inhibitory inputs occurs through local retinal...
Vertebrate brains evolved to facilitate a diverse array of behaviors and internal cognitive processes. Theories of neural function have proposed that neural computation is organized within populations or ensembles of neurons. Here, we identify ensembles of neurons in the striatum, the main input nucleus of the basal ganglia, in which...
Involuntary motor activities such as spasms arise from hyperreflexia in about 70% of individuals with spinal cord injuries (SCI). Despite this prevalence and the negative impact on health and safety, it is unclear what determines the severity of the spasms that develop. This study investigated the impact of injury severity...
Aging is the greatest known risk factor for Alzheimer’s Disease (AD); however, the molecular mechanisms underlying aging and how it can initiate and or exacerbate AD, is still unknown. Epigenetic regulation has been widely accepted to play an essential role in aging or AD-related processes; however, whether dysregulations of histone...