Home

Neuroscientists Have Discovered a Phenomenon That They Can’t Explain

Leave a comment

Click the link below the picture

.

Carl Schoonover and Andrew Fink are confused. As neuroscientists, they know that the brain must be flexible but not too flexible. It must rewire itself in the face of new experiences, but must also consistently represent the features of the external world. How? The relatively simple explanation found in neuroscience textbooks is that specific groups of neurons reliably fire when their owner smells a rose, sees a sunset or hears a bell. These representations—these patterns of neural firing—presumably stay the same from one moment to the next. But as Schoonover, Fink, and others have found, they sometimes don’t. They change—and to a confusing and unexpected extent.

Schoonover, Fink, and their colleagues from Columbia University allowed mice to sniff the same odors over several days and weeks and recorded the activity of neurons in the rodents’ piriform cortex—a brain region involved in identifying smells. At a given moment, each odor caused a distinctive group of neurons in this region to fire. But as time went on, the makeup of these groups slowly changed. Some neurons stopped responding to the smells; others started. After a month, each group was almost completely different. Put it this way: The neurons that represented the smell of an apple in May and those that represented the same smell in June were as different from each other as those that represent the smells of apples and grass at any one time.

This is, of course, just one study, of one brain region, in mice. But other scientists have shown that the same phenomenon, called representational drift, occurs in a variety of brain regions besides the piriform cortex. Its existence is clear; everything else is a mystery. Schoonover and Fink told me that they don’t know why it happens, what it means, how the brain copes, or how much of the brain behaves in this way. How can animals possibly make any lasting sense of the world if their neural responses to that world are constantly in flux? If such flux is common, “there must be mechanisms in the brain that are undiscovered and even unimagined that allow it to keep up,” Schoonover said. “Scientists are meant to know what’s going on, but in this particular case, we are deeply confused. We expect it to take many years to iron out.”

.

A red mouse on a yellow background with black puzzle pieces raining downAdam Maida / The Atlantic / Shutterstock

.

.

Click the link below for the article:

https://www.theatlantic.com/science/archive/2021/06/the-brain-isnt-supposed-to-change-this-much/619145/

.

__________________________________________

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.

govevi.com

Health fitness

Orbits Travellers

Travel blog for everyone

ASSHOLES WATCHING MOVIES

Our opinions don't stink!

Antarman

by Seema Kaushik

Meanderings

a graveyard of wandering thoughts

The Essence of you

Inspire Innovate Improve.

Heartfelt

Ranting, rambling bandwagon of an over emotional and over thinking mind..Hop on, if you feel like, and ride along!!

耳寄り情報 in シドニー。

シドニー歴20年以上、そしてシドニー飲食業界にずっと携わっている私が見た、感じた、イベント、グルメ等、その時のシドニーをご紹介していきます。

RazDva.net

VI VERI VENIVERSUM VIVUS VICI

Gods Glory

All things new will take you not only into the presence of God but into the depths of your faith daily

Endless dreams and boundless imaginations!

We only live once. Hence, let's not stop dreaming

Chatting With San

Personal blog where I express everything that goes on inside this ole head of mine. Some of it hurts and some of it is funny but ALL of it is REAL.

Learning with Life

Poems, quotes, learning, feelings, introspect, experience as well as discovering..

Finding Love In Anotherland

Life Is What We Love

booksbackinyourlife

How to use books as a tool to enrich your life

Fire of Moods

In this maze of words, shall our breath run out, where muses are gods, and poetry; a miracle.

Freer than Bird/鳥よりも自由

旅行記、ゴルフ、ドローン映像など自由気ままな内容/Travel, Golf, Drone etc.

Benie Writes

"With words, I give my thoughts life."

Profusión Real Estate

Te mostramos tu hogar

BE THE CHANGE

Refresh and start a new chapter

Tanooki Homemade Cafe

Yummy Homemade Food Recipes to Make You Smile:)

hapypie

To sale a hand made product

Lauren M. Hancock Poetry and Prose

Where I can feel at home...

Chica de Campo

Your country girl living the country life!

bubunTalk

..not all those who wander are lost.

the shared journal

by carla ♡

City Of Brides (Dating Single Ukrainian Girls)

Meet your beautiful Ukrainian bride in the "City of Brides"

Carving Moments by Orange

Every day is a Travel

Xtream Forex

Forex trading platform, forex broker, ECN broker

Manaswi

Never change your originality

adN's Health Blog

Health Care, Man's Health, Women's Health, Wellness/Fitness, Health/Beauty, Anti-aging Trigger, Weight Loss, Food/Diet, Parental Care, Relationship.

Spiritual healing for Love back and solve all problem

Get All Love problem Solution in just 2 days by spiritual healing specialist astrologer. Call and Whatsapp Now +1 (213) 631-7786

Ann_Within

A deep dive into various lives.

Más y todo libros

Blog de literatura para conocer, leer y comentar libros

Pensieri Parole e Poesie

Sono una donna libera. Nel mio blog farete un viaggio lungo e profondo nei pensieri della mente del cuore e dell anima.

%d bloggers like this: