Una psicologa spiega la complessità del cervello attraverso il Sushi

Janelle Letzen, una psicologa clinica presso l’Università di Baltimora, ha deciso di unire scienza e passione: l’arte del sushi. In questo modo è riuscita rendere comprensibili argomenti complessi.

“Ecco un po ‘di cibo per il tuo cervello”. Questa psicologa clinica che sta postando concetti psicologici su Instagram spiegandoli attraverso il sushi, i video oltre ad essere molto chiari sono anche molto simpatici e…deliziosi!

Il suo account Instagram è the_sushi_scientist”, nel quale, tra tonno, avocado, riso, e alghe, spiega visivamente argomenti che vanno dalla neuroscienza alla geologia.

L’amore della dott.ssa Letzen per il sushi inizia nel 2017, momento in cui capisce che avrebbe potuto combinare insieme concetti scientifici con composizioni culinarie.

 

“Per dimostrare come un segnale viaggia dalle tue membra / organi al tuo cervello, questo piccolo sushi mangerà un po ‘di dolore.  Qui sotto per saperne di più su come sentiamo dolore acuto!”

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To demonstrate how a signal travels from your limbs/organs to your brain, this little sushi man is going to have to go through some pain. Read below to learn more about how we feel acute pain! (Please note that “transverse” in the picture should read “thoracic”.) * Here the tuna nigiri 🍣 represents the skin region, or dermatome, covering the sushi man's bicep. . * When he gets cut with the 🔪 (sorry, it's for the science!), his peripheral nervous system becomes activated💥 in a process called "nociception." Nociception itself is not pain, just the nervous system's response to something that is potentially harmful. * This signal travels through sensory neurons in the periphery to pain-specific spinal cord tract(s). In this example, the signal enters through a thoracic spinal cord vertebra, the level of spinal cord associated with the bicep dermatome, passing the lumbar ones beneath. * Once in the spinal cord tract, the nociceptive signal travels up through the cord to the 🧠stem and the cerebrum (here, the salmon cerebrum roll). * A variety of 🧠 regions involved in sensation, emotion, memory/learning, and cognition work together to decide how painful the nociceptive signal is, where it's coming from in the body, and what kind of emotional response or action should happen as a result of the pain (e.g., pulling your hand away from a hot stove). . * Basically, the experience of pain gets made in the 🧠 , and nociception happens in the neurons below. * If you've ever had a medical procedure under general anesthesia, you (hopefully) experienced nociception without the conscious experience of pain.. ••••••••••••••••••••••••••••••••••••••••••••• #sushi #science #sushilovers #sciencelovers #phd #food #foodpost #pain #brain #neuroscience #sushieveryday#womenwhoscience

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Il talamo….

 

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Serving up some thalamus nigiri for this #tastytuesday! The thalamus is a structure positioned right above the brainstem. Its main function is to act as a "sensory relay station," meaning it takes incoming sensory information and appropriately sends it to the cerebral cortex for complex processing. Read below to learn more about how the thalamus works, and comment or DM with topic requests! * * * 1. Let's think about the cerebral cortex as executive board members for the company, Brain Co. This company's goal is to take things that people see, hear, smell, and touch to create personalized experiences. These experiences include things like emotions, thoughts, and physical movements. The board members want to decide how these personalized experiences turn out, but they need a way of managing the overwhelming amount of sensory information presented to their company. . * 2. Brain Co. has several stores that are each specialized in collecting different types of sensory information. To run efficiently, they need a regional manager that will assess the stores' work to decide which cerebral cortex board member would be most interested in this type of information for experience personalization. The thalamus acts as Brain Co.'s regional manager. * 3. In this role, the thalamus has a handy organizational scheme to compartmentalize overwhelming amounts of information. The thalamus organizes all of these different sensory inputs using "nuclei," or bundles of specialized neurons that differ slightly among each nucleus. . * 4. There might be ~50 specialized thalamic nuclei, but the most popular ones are served up in this nigiri. Further, each nucleus deals with potentially more than one type of sensory information, so the most well-established are listed above. . * 5. If you swipe through the next two pictures, you'll see where the thalamus is positioned in the brain (Fig. 2), and Brain Co.'s organizational structure for different types of information laid out in "cortico-basal loops" (Fig. 3). *************************** #science #sushiart #educational #researcher #medicine #md #psychology #phd #nursing #rn #physicianassistant #pa #steam #neuroscience #brainscience #brain

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Sindromi di disconnessione (sclerosi, ictus…)

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In light of renewed political discord in the US over gun control laws, I thought it would be appropriate to talk about disconnection syndromes. A disconnection syndrome refers to a set of symptoms that occurs after association fibers between two brain regions have been lesioned. These most commonly occur after stroke or from multiple sclerosis.. * Full splitting of the corpus callosum, the fibers that connect the left and right hemispheres, stems from corpus callosotomy. This is a now rare surgical procedure to treat intractable seizures. As a result of this disconnection, the two hemispheres do not communicate with each other, so each has its own unique perception and impulses during the early weeks of recovery. For example, a patient might synchronously reach for a red shirt with his/her right hand and a blue shirt with his/her left hand. * After some time, patients are usually able to reconcile these two competing perceptions and impulses, reporting a unified conscious experience through "external cross talk." In verbalizing their experience out loud, both hemispheres can process the information originally available to only one hemisphere, so that the two can work together. * If external cross talk can help promote neuroplasticity in split-brain patients, maybe it can help promote politicoplasticity in our society. We need to hear each other’s perceptions, not stay trapped in our own hemisphere, to come up with integrated solutions that will create the safest outcomes for us all. ••••••••••••••••••••• #sushi #science #sushiscience #politics #republicans #democrats #sushiart #womenwhoscience #neurology #neurosurgery #neuroscience #food #sushiloveforever #sushitooth

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