hkl @hkl@qoto.org

A brain process that can adjust the strength of connections between neurons is regulated by a set of proteins that stop the process from over-activating and causing seizures. https://elifesciences.org/digests/74899/keeping-brain-activity-under-control?utm_source=mastodon&utm_medium=social&utm_campaign=organic

Expecting to see an image activates a neural template of that image in the visual cortex https://www.growkudos.com/publications/10.1371%252Fjournal.pbio.3001023/reader #neuroscience

Estimating #phosphene locations using eye movements of #suprachoroidal #retinal #prosthesis users https://tvst.arvojournals.org/article.aspx?articleid=2785464

A gosling, afraid of me, ran to mama's protection & his under her wing...and then peaks out from under to see me. 🙂 ❤️

#birds #BirdPhotography #wildlife #wildlifephotography #nature #naturephotography #photo #Photography #cute #aww #geese

New sound navigation technology enables the blind to navigate https://medicalxpress.com/news/2023-03-technology-enables.html They probably meant "visually navigate", because blind people already navigate using echolocation, a cane, guide dog, Google Maps and what have you; #EyeCane

Modelling extracellular stimulation of retinal ganglion cells: theoretical and practical aspects https://iopscience.iop.org/article/10.1088/1741-2552/acbf79 retinal implant, retinal prosthesis, #RGC

Look into my eye 👁‍🗨

Here is a really close look at a male brown headed cowbird. They are part of the family Icterid which includes blackbirds, grackles, and others. There have been several hanging around my yard lately.

"The Brown-headed Cowbird is a stocky blackbird with a fascinating approach to raising its young. Females forgo building nests and instead put all their energy into producing eggs, sometimes more than three dozen a summer. These they lay in the nests of other birds, abandoning their young to foster parents, usually at the expense of at least some of the host’s own chicks. Once confined to the open grasslands of middle North America, cowbirds have surged in numbers and range as humans built towns and cleared woods." - allaboutbirds.org

#photo #photography #photographer #photographylovers #birds #birdsofmastodon #birdwatching #BrownHeadedCowbird

Hands-free tech adds realistic sense of touch in extended reality https://news.rice.edu/news/2023/hands-free-tech-adds-realistic-sense-touch-extended-reality "Tactile bracelet and 'pseudo-haptic' visuals make virtual touch more believable"; #AR/#VR #haptics

Interesting what a change in tactics can do: Man beats machine at Go in human victory over AI https://www.ft.com/content/175e5314-a7f7-4741-a786-273219f433a1 "even years after AI appeared to have taken an unassailable lead over humans"; war-time deployment of #AI is not a guaranteed win.

19.8k
Lighter at 7600 frames per second

Meanwhile, back at the feeder:

Chipping sparrows and a house finch arrive for dinner.

“Strange to see how a good dinner and feasting reconciles everybody.” - Samuel Pepys, The Diary of Samuel Pepys

#photo #photography #photographer #birds #sparrow #finch

Flying bird.

Ohhh ... my head is dull this morning. This photo of a flying chipping sparrow is zoomed in way way too far. But it does have its appeal. It almost looks like a painting.

#birds

Developmental mechanisms underlying the evolution of human cortical circuits
https://doi.org/10.1038/s41583-023-00675-z

#neuroscienceday

What kind of intelligence is artificial intelligence?

The initial goal of AI was to create machines that think like humans. But that is not what happened at all.

"ChatGPT is basically auto-complete on steroids."

https://bigthink.com/13-8/what-kind-of-intelligence-is-ai

#ai #artificialintelligence #chatGPT #languagelearning

Image-dependence of the detectability of optogenetic stimulation in macaque inferotemporal cortex https://www.cell.com/current-biology/fulltext/S0960-9822(22)01921-2 #BCI #NeuroTech #optogenetics #neuroscience

More information in the Twitter thread https://twitter.com/RezaAzadi_/status/1625265187338227714 "optogenetic stimulation of high-level visual cortex results in distortions of the concurrent contents of vision"

"Transient receptor potential vanilloid 1 (TRPV1), a receptor for capsaicin and noxious heat, has been one of the most compelling targets for analgesics. However, systemic inhibition of TRPV1 is an impractical approach as a pain killer, since systemic antagonism induces hyperthermia. Two articles in this issue of the JCI report phenotypes from separate, rare missense mutations of human TRPV1."

#neuroscience #SensoryNeuroscience #trpv1

https://www.jci.org/articles/view/167338

Patterns in slow-motion splashes

'The value of large-scale studies of sleep and cognition'

https://cell.com/trends/neurosciences/fulltext/S0166-2236(23)00026-7

@TrendsNeuro Spotlight by Michael W.L. Chee & Adrian R. Willoughby,

discussing @antoinecoutrot et al., Nat Communications,
@hugospiers

https://nature.com/articles/s41467-022-34624-8

‘Google’s riposte to ChatGPT has got off to an embarrassing start after its new artificial intelligence-powered chatbot gave a wrong answer in a promotional video, as investors wiped more than $100bn (£82bn) off the value of the search engine’s parent company, Alphabet.’ https://www.theguardian.com/technology/2023/feb/09/google-ai-chatbot-bard-error-sends-shares-plummeting-in-battle-with-microsoft #google #alphabet #ai #chatgpt #bard #AnExpensiveVideo