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This Week in Neuroscience artwork

This Week in Neuroscience

Vincent Racaniello·71 episodes

ScienceLifeNatural

A podcast about the nervous system.

Episodes

1 hr 9 min
Jun 1, 2026Episode 66
TWiN 72: What cesarean babies miss

TWiN explains the finding that vaginal microbiota transfer ameliorates cesarean-associated neurodevelopmental deficits in mice via synthesis of a sphingosine derivative on neonatal skin. .Hosts: Vincent Racaniello, Vivianne Morrison, and Tim Cheung Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Vaginal microbiota transfer ameliorates cesarean-associated neurodevelopmental deficits (Cell Host Microbe) Timestamps by Jolene Ramsey. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 31 min
Apr 29, 2026Episode 70
Psychedelics rewire the brain from within

TWiN explains the finding that activation of intracellular, not plasma membrane, serotonin 2A receptors is responsible for the plasticity-promoting and antidepressant-like properties of psychedelic compounds. Hosts: Vincent Racaniello, Vivianne Morrison, and Tim Cheung Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Psychedelics rewire the brain from within (Science) Psychedelics elicit their effects by Gi signaling (Nature) History of LSD (Wikipedia) Timestamps by Jolene Ramsey. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 19 min
Mar 17, 2026Episode 70
Unraveling the axon wrap

TWiN explains the role of a ubiquitin ligase component in regulating the sheathing of multiple axons by Schwann cells. Hosts: Vincent Racaniello, Vivianne Morrison, and Tim Cheung Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Gut microbiome promotes pain in fibromyalgia (Neuron) Timestamps by Jolene Ramsey. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 11 min
Mar 5, 2026Episode 69
Fibromyalgia and the microbiome

TWiN explains a study which showed that transplanting gut microbiota from women with fibromyalgia into mice induces pain, as well as phenotypes commonly observed in patients, such as immune activation, metabolomic changes, and reduced skin innervation. Hosts: Vincent Racaniello, Vivianne Morrison, and Tim Cheung Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Gut microbiome promotes pain in fibromyalgia (Neuron) Timestamps by Jolene Ramsey. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 14 min
Jan 27, 2026Episode 68
Firewall for the brain

TWiN explores the use of speech brain-computer interfaces to restore communication to people with paralysis, and reveals strategies for protecting private inner speech. Hosts: Vincent Racaniello, Vivianne Morrison, and Tim Cheung Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Keeping private inner speech from brain-computer interfaces (Cell) Mind-reading brain implant with password protection (Nature) Timestamps by Jolene Ramsey. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 30 min
Dec 24, 2025Episode 67
Interpreting situation-specific facial signals

TWiN explores how theta phase shifts mediate contextual perception of facial expressions during everyday social interactions. Hosts: Vincent Racaniello, Vivianne Morrison, and Tim Cheung Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Neural computations underlying contextual processing in humans (Cell Rep) Previous experience shapes perception (Front Human Neurosci) Timestamps by Jolene Ramsey. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 24 min
Nov 26, 2025Episode 66
Neuroscience of overeating

TWiN reviews the underlying neurobiological mechanisms of overeating and obesity, the role of the hypothalamus and reward systems in controlling food intake and energy balance, and how dysregulation in these systems leads to overeating. Hosts: Vincent Racaniello, Vivianne Morrison, and Tim Cheung Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Neurobiology of overeating (Neuron) Timestamps by Jolene Ramsey. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 37 min
Nov 4, 2025Episode 65
Air pollutants promote dementia

TWiN explains epidemiological data showing that exposure to air pollution was associated with an increased risk of developing Lewy body dementia, and nasal administration of air pollution in mice led to brain atrophy and impaired cognition and motor function. Hosts: Vincent Racaniello, Vivianne Morrison, and Tim Cheung Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Links between air pollution and dementias (Science) Letter from Susan Schneider Williams Widow of Robin Williams (Lewy Body Dementia UK) Awakenings (Wikipedia) Timestamps by Jolene Ramsey. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 14 min
Oct 8, 2025Episode 64
How the brain decides what we see

TWiN explains how visual neurons show functional flexibility by selectively responding to subsets of inputs representing attended objects while ignoring those conveying information about irrelevant objects. Hosts: Vincent Racaniello, Vivianne Morrison, and Tim Cheung Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Gamma-band synchronization in visual cortex (Nat Comm) Timestamps by Jolene Ramsey. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 31 min
Aug 21, 2025Episode 63
Microbiome-targeted neurotherapy

TWiN discusses research showing that Lactobacillus acidophilus promotes cognitive function recovery after cerebral ischemia, by regulating microglial peroxisomal function. Hosts: Vincent Racaniello, Vivianne Morrison, and Tim Cheung Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Arc is pdb molecule of the month (PDB) Probiotics after stroke (Cell Host Microbe) Timestamps by Jolene Ramsey. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 21 min
Jul 23, 2025Episode 62
Memories of bad food

TWiN explains research which identifies the regions of the brain that register a long-lasting aversion to potentially poisonous food even with meal to illness delays of several days. Hosts: Vincent Racaniello, and Tim Cheung Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server A neural mechanism for post-ingestion feedback (Nature) Timestamps by Jolene Ramsey. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 40 min
Jun 25, 2025Episode 61
Blood to the brain

TWiN reveals that proteins travel from the blood to the brain where they are taken up by microglia, revealing a new mode of communication between the brain and the periphery. Hosts: Vincent Racaniello, Tim Cheung, and Vivianne Morrison Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Circulatory proteins taken up by brain microglia (bioRxiv) Timestamps by Jolene Ramsey. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 5 min
Jun 3, 2025Episode 60
You get the gist of it?

TWiN discusses experiments which show that high-fidelity memories that lose their precision with time depends on reorganization of hippocampal circuitry. Hosts: Vincent Racaniello, Jason Shepherd, and Tim Cheung Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Loss of precision memory and the hippocampus (Nature) Changes in hippocampi of cab drivers (PNAS) Timestamps by Jolene Ramsey. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 14 min
Apr 2, 2025Episode 59
AI co-scientist

Tim explains AI co-scientist, a tool released by Google, which it hopes to help scientists generate hypotheses and research proposals, and to accelerate the speed of scientific and biomedical discoveries. Hosts: Vincent Racaniello, Tim Cheung, and Vivianne Morrison Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server AI cracks superbug problem (BBC) Accelerating scientific breakthroughs (Google Research) Towards an AI co-scientist (arXiv) Timestamps by Jolene Ramsey. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 14 min
Mar 10, 2025Episode 58
Tongue-dragging rescue behavior

TWiN explains a study showing that when a mouse is confronted with an unconscious conspecific, it engages in behavior including tongue-dragging to resuscitate the animal via a tongue-brain connection. Hosts: Vincent Racaniello, Tim Cheung, and Vivianne Morrison Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Tongue-dragging in mice (Sci Adv) Timestamps by Jolene Ramsey. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

40 min
Feb 4, 2025Episode 57
Repetitive injury, herpes, and Alzheimer's

TWiN discusses a study showing that repetitive injury reactivates HSV-1 in a human brain tissue model and induces phenotypes associated with Alzheimer's disease. Hosts: Vincent Racaniello and Tim Cheung Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Repetitive injury, herpes, and Alzheimers (Sci Signal) The tau of herpesvirus (TWiV 1187) Fishing for viruses in senile (TWiV 519) Timestamps by Jolene Ramsey. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr
Nov 26, 2024Episode 56
Astrocytes help neurons remember

TWiN explains a study showing that while groups of neurons, form the basis for memory, astrocytes are key components of the adaptive reponse to learning experiences, and regulate the flow of information during circuit plasticity and memory recall. Hosts: Vincent Racaniello, Jason Shepherd, and Tim Cheung Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Write your Senator, oppose RFK Jr nomination Astrocytes and memory (Nature) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 9 min
Oct 28, 2024Episode 55
A brain circuit for day/night balance

TWiN explains the identification of a brain circuit and periodic branch-specific neurotransmitter deployment that regulates organismal adaptation to photoperiod change. Hosts: Vincent Racaniello, Jason Shepherd, and Tim Cheung Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Brain circuit for photoperiod adaptation (Nature) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 5 min
Oct 1, 2024Episode 54
How pregnancy transforms the brain

TWiN explores how pregnancy leads to modifications in brain structure and function that may prepare the mother for parenting. Hosts: Vincent Racaniello, Jason Shepherd, and Vivianne Morrison Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Pregnancy transforms the brain (Nature) Hormone-mediated neural remodeling during pregnancy (Science) Effects of pregnancy on brain activity (Nature Comm) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 10 min
Jul 29, 2024Episode 53
Slowing time by cooling the brain

Joseph Paton and Felipe Rodrigues join TWiN to explain how they used temperature manipulation to alter the speed of neuronal dynamics in the dorsal striatum of rats, a manipulation that selectively slowed down or sped up time perception, illuminating the mechanisms of time-based decisions. Hosts: Vincent Racaniello, Jason Shepherd, Timothy Cheung, and Vivianne Morrison Guest: Joseph J. Paton and Felipe Rodrigues Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Using temperature to analyze the neural basis of a time-based decision (Nat Neurosci) Hot times for the dorsal striatum (Nat Neurosci) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 5 min
Jun 24, 2024Episode 52
Probiotic improves social behavior in children with ASD

Mauro Costa-Mattioli returns to TWiN to discuss the results of a placebo controlled, double blind clinical trial of a probiotic which improved social behavior but not autism severity in children with ASD. Hosts: Jason Shepherd, Timothy Cheung, and Vivianne Morrison Guest: Mauro Costa-Mattioli Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Probiotics for autism spectrum disorder (Cell Host Microbe) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 11 min
May 28, 2024Episode 51
Sensory processing dysfunction in autism spectrum disorders

TWiN reviews altered somatosensory reactivity, which is frequently observed among individuals with autism spectrum disorders (ASD), and in mouse models the developmental timing of aberrant touch processing can predict the manifestation of ASD-associated behaviors in mouse models.  Hosts: Vincent Racaniello, Jason Shepherd, Timothy Cheung, and Vivianne Morrison Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Mouse models of autism spectrum disorder (Nature Neuroscience) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 4 min
Apr 29, 2024Episode 50
Neurological sequelae after COVID-19

TWiN reviews experiments which show that SARS-CoV-2 triggers the up-regulation of synaptic components and perturbs local electrical field potential in cerebral organoids, organotypic culture of human brain explants and post-mortem brain samples from individuals with COVID-19.  Hosts: Vincent Racaniello, Jason Shepherd, Timothy Cheung, and Vivianne Morrison Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server SARS-CoV-2 perturbs synaptic homeostasis (Nature Micro) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 31 min
Mar 25, 2024Episode 49
Mirror, mirror on the wall, who's the fairest mouse of all?

TWiN welcomes mice to the elite club of 'self-aware' animals, with a study demonstrating a mirror-induced self-directed behavior in mice resembling visual self-recognition.  Hosts: Vincent Racaniello, Timothy Cheung, and Vivianne Morrison Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Mice are self-aware (Neuron) Mirror self-recognition in mice (Neuron) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

51 min
Feb 19, 2024Episode 48
Traumatic brain injury and retroviruses

TWiN describes a study that reveals activation of endogenous retroviruses in oligodenroglia from patients with traumatic brain injury.  Hosts: Vincent Racaniello, Jason Shepherd, and Timothy Cheung Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Activation of endogenous retroviruses in TBI oligodendroglia (Cell Rep) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

55 min
Jan 29, 2024Episode 47
Walking after spinal cord injury

TWiN explains an amazing study of a man who was paralyzed after a spinal cord injury and regained the ability to walk after implantation of a brain-spinal cord interface.  Hosts: Vincent Racaniello, Jason Shepherd, and Timothy Cheung Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Walking naturally after spinal cord injury (Nature) The paralyzed rat that walked (YouTube) Mike the headless chicken (Wikipedia) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

51 min
Jan 1, 2024Episode 46
Neuronal activity promotes glioma progression

TWiN explains research showing that interaction between glioma cells and neurons in the brain shares mechanistic features with synaptic plasticity that contributes to memory and learning in the healthy brain.  Hosts: Vincent Racaniello, Jason Shepherd, and Timothy Cheung Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Glioma synapses recruit mechanisms of adaptive plasticity (Nature) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

52 min
Dec 13, 2023Episode 45
Acupuncture modulates the immune system

TWiN discusses research showing that sciatic nerve activation with electroacupuncture at the sciatic nerve controls systemic inflammation and rescues mice from polymicrobial peritonitis, by inducing vagal activation of aromatic L-amino acid decarboxylase, leading to the production of dopamine in the adrenal medulla.  Hosts: Vincent Racaniello, Jason Shepherd, and Timothy Cheung Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Electroacupuncture modulates the immune system (Nat Med) Electroacupuncture drives the vagal–adrenal axis (Nature) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr
Nov 2, 2023Episode 44
ADHD and persistent pain

TWiN reviews a mouse model of ADHD to characterize hypersensitivity to pain, and that sensitization is further amplified in a pathological inflammatory state. Hosts: Vincent Racaniello, Jason Shepherd, and Timothy Cheung Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Pain hypersensitivity in ADHD model (PNAS) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 2 min
Oct 4, 2023Episode 43
Pavlovian opioid tolerance

TWiN discusses a study of on the pathways that control opioid analgesic tolerance, a root cause of opioid overdose and misuse, which can develop through an associative learning. Hosts: Vincent Racaniello, Jason Shepherd, and Timothy Cheung Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Associative opioid analgesic tolerance (Sci Adv) Pavlovian-conditioned opioid tolerance (Sci Adv) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

56 min
Jul 18, 2023Episode 42
Therapeutic effects of psychedelic drugs

TWiN explains how psychedelic drugs such as LSD, psilocybin, and MDMA, which are being explored for treating a wide range of neuropsychiatric diseases, reopen the social reward period for critical learning. Hosts: Vincent Racaniello, Jason Shepherd, and Timothy Cheung Click arrow to play Download TWiN 042 (34 MB .mp3, 57 min) Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Psychedelic drugs open critical period (Nature) Psychedelics reopen critical periods (News-Med) LSD microdosing doesn't work (U Chicago Med) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 18 min
Jun 20, 2023Episode 41
Alzheimer's and melanin-concentrating hormone

Vivianne explains how early in Alzheimer's disease, the brain attempts to counteract the increased excitatory drive caused by amyloid deposition, and that melanin-concentrating hormone, produced during sleep, is involved in this protective response. Hosts: Vincent Racaniello, Jason Shepherd, Timothy Cheung, and Vivianne Morrison Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Melanin-concentrating hormone and Alzheimer's disease (Nat Neurosci) Alzforum Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 4 min
May 11, 2023Episode 40
Dopamine organizes behavior's syllables

Tim takes TWiN through two studies on the role of dopamine: that syllables are natural units of spontaneous behavior used by the brain to structure action, and that mesolimbic dopamine release conveys causal associations but not reward prediction errors, thereby challenging the dominant theory of reward learning. Hosts: Vincent Racaniello, Jason Shepherd, Timothy Cheung, and Vivianne Morrison Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Spontaneous behavior without explicit reward (Nature) Dopamine release conveys causal associations (Science) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

52 min
Apr 28, 2023Episode 39
Virus-like capsids trigger paraneoplastic disease

Junjie from Jason's lab joins TWiN to discuss the observation that the cell gene PNMA2 encodes non-enveloped virus-like capsids that induce autoantibodies which underlie paraneoplastic syndrome. Hosts: Vincent Racaniello, Jason Shepherd, Timothy Cheung, and Junjie Xu Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Virus-like capsids in paraneoplastic disease (bioRxiv) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 4 min
Mar 27, 2023Episode 38
Bacterial immunity heals sensory neurons

TWiN explains the finding that immunity to commensal bacteria promotes sensory neuron regeneration via the cytokine interleukin-17A. Hosts: Vincent Racaniello, Ori Lieberman, Timothy Cheung, and Vivianne Morrison Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode MicrobeTV Discord Server Immunity to the microbiota promotes sensory neuron regeneration (Cell) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 15 min
Jan 23, 2023Episode 37
Microglia at the crossroads

TWiN reviews the field of microgial research, which has advanced in recent decades but is constrained by nomenclature that is necessary but often implies specific functions. Hosts: Vincent Racaniello, Jason Shepherd, Timothy Cheung, and Vivianne Morrison Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode Microglia states and nomenclature (Nature) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 29 min
Jan 3, 2023Episode 36
Unbearable neurologists

TWiN answers listener questions about Alzheimer's disease, glaucoma and the microbiota, Dravet's Syndrome, schizophrenia, brain development, and chips implanted in the human brain. Hosts: Vincent Racaniello, Jason Shepherd, Timothy Cheung, and Vivianne Morrison Subscribe (free): Apple Podcasts, Google Podcasts, RSS Links for this episode Letters read on TWiN 36 Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 9 min
Dec 6, 2022Episode 35
Neuromodulation in treatment-resistant depression

Jason and Tim review the use of an implanted chronic deep brain sensing and stimulation device to carry out biomarker-driven closed-loop therapy that resulted in a rapid and sustained improvement in depression.  Hosts: Jason Shepherd and Timothy Cheung Subscribe (free): Apple Podcasts, Google Podcasts, RSS, email Links for this episode Closed-loop neuromodulation for depression (Nat Med) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 9 min
Sep 30, 2022Episode 34
Microglia vital after spinal cord injury

TWiN explains how central nervous system resident macrophages known as microglia coordinate cellular interactions during spinal cord repair in mice. Hosts: Vincent Racaniello, Jason Shepherd, Timothy Cheung, and Vivianne Morrison Subscribe (free): Apple Podcasts, Google Podcasts, RSS, email Links for this episode Microglia coordinate spinal cord repair (Nat Commun) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

58 min
Aug 31, 2022Episode 33
Viruses leaving the brain

TWiN describes how neurotropic viruses leave the brain via meningeal lymphatic vessels located dorsally and basally beneath the skull. Hosts: Vincent Racaniello, Ori Lieberman, Jason Shepherd, and Timothy Cheung Subscribe (free): Apple Podcasts, Google Podcasts, RSS, email Links for this episode Meningeal lymph vessels and viral exit from brain (Nature Neuroscience) Clearing mouse brain video (YouTube) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

59 min
Aug 2, 2022Episode 32
Relearning how to move after stroke

TWiN reviews how, in a mouse stroke model, recovery of movement is associated with the remaining cortex and the striatum coordinating their activity together. Hosts: Ori Lieberman, Timothy Cheung, and Vivianne Morrison Subscribe (free): Apple Podcasts, Google Podcasts, RSS, email Links for this episode Recovery after stroke in mice (Cell Rep) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 11 min
Jun 29, 2022Episode 31
HIV-1 co-receptor shapes window for memory linking

TWiN explains the observation that in mice, the HIV-1 co-receptor CCR5 closes the temporal window for linking different memories. Hosts: Vincent Racaniello, Jason Shepherd, Timothy Cheung, and Vivianne Morrison Subscribe (free): Apple Podcasts, Google Podcasts, RSS, email Links for this episode CCR5 and memory linking (Nature) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 9 min
May 24, 2022Episode 30
Gut to brain spread of alpha-synuclein in Parkinson's disease

TWiN describes experiments demonstrating that gut injection of alpha-synuclein fibrils in mice converts endogenous alpha-synuclein to a pathologic form that spreads to the brain and leads to features of Parkinson's disease. Hosts: Vincent Racaniello, Ori Lieberman, Jason Shepherd, Timothy Cheung, and Vivianne Morrison Subscribe (free): Apple Podcasts, Google Podcasts, RSS, email Links for this episode Gut-brain alpha-synuclein transport in PD (Neuron) Gut has a mind of its own (Colbert Report) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 2 min
May 2, 2022Episode 29
Astrocytes close the critical period

TWiN explains the finding that in the mouse visual cortex, astrocytes are key elements in the experience-dependent wiring of brain circuits. Hosts: Vincent Racaniello, Jason Shepherd, Timothy Cheung, and Vivianne Morrison Subscribe (free): Apple Podcasts, Google Podcasts, RSS, email Become a patron of TWiN! Links for this episode Astrocytes close the critical period (Science) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 13 min
Apr 4, 2022Episode 28
Oligodendrocyte performance enhancing exosomes

TWiN reveals how oligodendrocytes enhance axonal energy metabolism by transcellular delivery of a protein, SIRT2, that deacetylates mitochondrial proteins. Hosts: Vincent Racaniello, Timothy Cheung, and Vivianne Morrison Click arrow to play Download TWiN 028 (77 MB .mp3, 64 min) Subscribe (free): Apple Podcasts, Google Podcasts, RSS, email Become a patron of TWiN! Links for this episode Glia 101 (TWiN 19) Oligodendrocytes enhance axonal energy metabolism (Neuron) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 3 min
Mar 3, 2022Episode 27
Eyes wired to the auditory cortex

TWiN discusses the finding that rewiring retinal projections to the auditory thalamus in ferrets leads to visually responsive cells that are typical of cells in the visual cortex. Hosts: Ori Lieberman, Jason Shepherd, Timothy Cheung, and Vivianne Morrison Subscribe (free): Apple Podcasts, Google Podcasts, RSS, email Become a patron of TWiN! Links for this episode Remapping retinal projections (Nature) Sweet vs bitter taste (Nature) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

53 min
Jan 31, 2022Episode 26
Immunological memory in the brain

TWiN reviews evidence in mice that brain neurons encode and retrieve specific immune responses. Become a patron of TWiN! Links for this episode Memory of immunity (Cell) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 2 min
Dec 28, 2021Episode 25
Thanks for listening

TWiN answers listener questions on sex in neuroscience studies, rotating memories in the brain, odorant receptors in the brain, and neutrophils that promote neuron survival. Hosts: Vincent Racaniello, Jason Shepherd, and Timothy Cheung Subscribe (free): iTunes, Google Podcasts, RSS, email Become a patron of TWiN! Links for this episode Males and females in neuroscience studies (New Scientist) Brain rotates memories (Quanta) Odorant receptors in brain (one, two) Neutrophils promote neuron survival (Nat Imm) Letters read on TWiN 25 Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

1 hr 12 min
Nov 24, 2021Episode 24
Social transmission of maternal behavior with Ioana Carcea and Robert Froemke

Ioana and Robert join TWiN to discuss their work demonstrating that rodents acquire maternal behavior by social transmission from an experienced mother to a virgin female how to care for a litter via endogenous oxytocin. Hosts: Vincent Racaniello and Timothy Cheung Guests: Ioana Carcea and Robert Froemke Subscribe (free): iTunes, Google Podcasts, RSS, email Become a patron of TWiN! Links for this episode Oxytocin neurons and social transmission of behavior (Nature) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to twin@microbe

1 hr 11 min
Oct 31, 2021Episode 23
Peripheral nervous system with Bruce Carter

Bruce Carter joins TWiN to discuss the peripheral nervous system: the development of nerves that convey sensory information like touch from the tips of your toes to the brain, and Schwann cells, which are necessary for ensuring that those sensory signals are sustained as they travel long distances to the brain. Hosts: Vincent Racaniello, Timothy Cheung, and Vivianne Morrison Guest: Bruce Carter Subscribe (free): iTunes, Google Podcasts, RSS, email Become a patron of TWiN! Links for this episode Control of neuron survival by p75 (J Neurosci) Sympathetic nervous system (Nat Rev Neurosci) Charcot-Marie-Tooth and PMP22 protein (J Biol Chem) Satellite glial cells (Nat Rev Neurosci) Timestamps by Jolene. Thanks! Music is by Ronald Jenkees Send your neuroscience questions and comments to [email protected]

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