#hippocampus — Public Fediverse posts

DATE: August 25, 2026 at 01:06AM
SOURCE: SCIENCE DAILY PSYCHOLOGY FEED

TITLE: Depression may shut down the brain’s ability to make new neurons

URL: https://www.sciencedaily.com/releases/2026/08/260823094135.htm

A major study found that adults with depression show disrupted production of new neurons in the hippocampus, potentially weakening the brain’s ability to separate new experiences from painful memories. The researchers also identified broad molecular changes that could open the door to new treatments tailored to different biological forms of depression.

URL: https://www.sciencedaily.com/releases/2026/08/260823094135.htm

-------------------------------------------------

Private, vetted email list for mental health professionals: https://www.clinicians-exchange.org

Unofficial Psychology Today Xitter to toot feed at Psych Today Unofficial Bot @PTUnofficialBot

-------------------------------------------------

#psychology #counseling #socialwork #psychotherapy @psychotherapist @psychotherapists @psychology @socialpsych @socialwork @psychiatry #mentalhealth #psychiatry #healthcare #depression #psychotherapist #Depression #BrainHealth #Hippocampus #Neurogenesis #MentalHealthResearch #NeuralPlasticity #BiologicalDepression #NewTreatments #Memories #Neuroscience

Taxi Drivers Rarely Die Of Alzheimer’s – How Complex Mental Maps And Spatial Reasoning Protect Your Brain [why knowing your way around might help you stay sharp]
--
https://theconversation.com/taxi-drivers-rarely-die-of-alzheimers-how-complex-mental-maps-and-spatial-reasoning-protect-your-brain-286650 <-- shared technical article
--
https://doi.org/10.1136/bmj-2024-082194 <-- shared paper
--
https://doi.org/10.1073/pnas.070039597 <-- shared paper
--
https://doi.org/10.1038/s41582-018-0031-x <-- shared paper
--
https://tfl.gov.uk/info-for/taxis-and-private-hire/licensing/learn-the-knowledge-of-london <-- details of @Transport for London’s ‘The Knowledge’ details
--
https://youtu.be/u7gp8KBP7ak?si=X1xXcysZF2LayFkx <-- shared video, ‘The People Who Have To Remember 25,000 Streets | The [London] Knowledge - The World's Toughest Taxi Test’
--
H/T @ Jennifer Psillas, GISP | GIS Project Manager at City of Tucson Parks and Recreation
“Taxi and ambulance drivers are less likely than workers in almost any other job to die of Alzheimer’s disease. That was the surprising result of a 2024 study examining the death certificates of nearly 9 million people in the U.S…
Of the 9 million death certificates from January 2020 to December 2022 that researchers examined, taxi and ambulance drivers had the lowest risk of dying from Alzheimer’s disease out of 443 occupations. After adjusting for age, sex, race, ethnicity and education, roughly 1 in 100 taxi and ambulance drivers died of Alzheimer’s, compared with 1 in 60 people overall.
This pattern did not extend to other driving jobs. The researchers concluded that the key to reducing the risk of Alzheimer’s was not driving itself but continuous real-time navigation: the constant work of locating yourself in space, tracking a destination and updating a mental map as conditions change. Drivers whose jobs relied on fixed or predetermined routes, like bus drivers and aircraft pilots, didn’t seem to experience a similar advantage.
Researchers believe the association between navigation-heavy work and lower Alzheimer’s risk centers on the hippocampus, a part of the brain that governs memory and spatial navigation. It’s one of the first brain regions that Alzheimer’s damages: Problems with spatial navigation and orientation are among the earliest signs of the disease, sometimes surfacing before obvious memory loss.
In one landmark 2000 study [link above], neuroscientists compared the brains of licensed London taxi drivers with those of people who did not drive cabs. Their findings provided the first evidence via structural imaging that regions of the adult brain can measurably change under sustained navigational demand. To earn a license, London cabbies must memorize more than 25,000 streets within a 6-mile radius of Charing Cross, a challenge known as “The Knowledge” that takes three to four years…”
#spatialnavigation #orientation #mental #acuity #taxi #ambulance #paramedic #TheKnowledge #London #UK #Alzheimer #mapping #mentalmaps #spatialmapping #navigation #spatialreasoning #brain #hippocampus #brainhealth #death #mortality #disease #publichealth #scans #occupation #job

Know the difference!
#Hippocampus & #Hippo #Campus

#KätToon #Brain #hippopotamus #Flusspferd #Gehirn #Hirn #Universität #university

Know the difference:
#Hippocampus & #Hippo #Campus

#KätToon #BadPuns #Gehirn #Brain #Flusspferd #Hirn #Uni #Universität #university

@johnwidloski and I are co-organizing a symposium on #HippocampalReplay at the #EBBS25 in Bordeaux!

Our goal: From the state of the art in awake replay models & existing data, determine the next big questions and most informative future experiments to finally figure out what is awake replay for!

Our speakers:

• John Widloski
• Lisa Genzel
• Jacob Bakermans
• Elisa Massi

Meeting dates: 28 June to 1 July 2025 (our symposium is on the last day

Programme: https://ebbs2025.azuleon.org/programme

The abstract submission deadline for posters (and early bird registration) is on 31 March 2025 - I hope to see you there!

#Neuroscience #NeuroSymp #NeuroConf #Hippocampus

Updated #bioRxiv preprint:

Comparing representations of planning and habit in #hippocampus, #PrefrontalCortex, and dorsolateral #striatum as rats navigate complex and simple environments.

https://www.biorxiv.org/content/10.1101/2024.03.11.584503v2

#neuroscience

At #Fens2024 tomorrow (Wednesday 26/June) - Check out our poster comparing how representations change in #hippocampus, dorsolateral #striatum, and #prefrontal cortex in rats making decisions as environmental complexity changes.

U. Mugan et al. Poster number 211. In poster session 02: prefrontal decision-making

Some really cool results looking at interactions between decision-making systems!

Look at this incredible photo of a big belly #seahorse submitted to our #iSeahorse project, on iNaturalist.org. Notice the amazing red and yellow colouring. 🤩

Looks like a #dragon 😉

Thank you to Luca Davenport-Thomas for submitting this.

#fishyfriday #fishyfriday #UnderwaterPhotography #CitizenScience #CommunityScience #oceans #hippocampus #marine #conservation #diving #AmazingAnimals #marinelife #photography #scuba #underwater #RedList #OceanOptimism #EndangeredSpecies #Syngnathids

A little summary of #Neuroscience-related hashtags?
(Please add any you think of in answer and I’ll edit the list)

.#NeuroArt
.#Neuroscientist / #Neuroscientists
.#NeuroRat (yep, I’m pretty much the only one using this one)

.#NeuroJobs

The cell types:
.#PlaceCells / #GridCells / #HeadDirectionCells / #SplitterCells … (give me more)

And then we have the brain regions:

.#Hippocampus / #Striatum / #RetrosplenialCortex / #Cortex / #Cerebellum / …

Bonus:
.# NeuroBuzz: once a post takes off, anyone can add it as an answer and then the author can edit it in the original post (but don’t add it when writing the original post, that’s cheating)

Missing mechanism helps solve fragile X protein mystery

https://www.spectrumnews.org/news/missing-mechanism-helps-solve-fragile-x-protein-mystery/

#intellectualdisability #repetitivebehaviors #socialdifficulties #fragileXsyndrome #neuralcircuits #connectivity #hippocampus #mousemodels #treatments #synapses #autism #News #FMR1 #FMRP

Mouse models help sniff out olfactory differences in autism

https://www.spectrumnews.org/news/mouse-models-help-sniff-out-olfactory-differences-in-autism/

#sensoryperception #fragileXsyndrome #hippocampus #oxytocin #CNTNAP2 #autism #SHANK3 #News #FMR1

Plethora of protein-making machines in neurons may underlie fragile X

https://www.spectrumnews.org/news/plethora-of-protein-making-machines-in-neurons-may-underlie-fragile-x/

#synapticplasticity #fragileXsyndrome #geneexpression #hippocampus #mousemodels #SFARIGene #autism #mGluR5 #News #FMR1 #FMRP