Neuron numbers link innovativeness with both absolute and relative brain size in birds

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F22%3A10450326" target="_blank" >RIV/00216208:11310/22:10450326 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=Op8SWwqb6e" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=Op8SWwqb6e</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41559-022-01815-x" target="_blank" >10.1038/s41559-022-01815-x</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Neuron numbers link innovativeness with both absolute and relative brain size in birds

Popis výsledku v původním jazyce

A longstanding issue in biology is whether the intelligence of animals can be predicted by absolute or relative brain size. However, progress has been hampered by an insufficient understanding of how neuron numbers shape internal brain organization and cognitive performance. On the basis of estimations of neuron numbers for 111 bird species, we show here that the number of neurons in the pallial telencephalon is positively associated with a major expression of intelligence: innovation propensity. The number of pallial neurons, in turn, is greater in brains that are larger in both absolute and relative terms and positively covaries with longer post-hatching development periods. Thus, our analyses show that neuron numbers link cognitive performance to both absolute and relative brain size through developmental adjustments. These findings help unify neuro-anatomical measures at multiple levels, reconciling contradictory views over the biological significance of brain expansion. The results also highlight the value of a life history perspective to advance our understanding of the evolutionary bases of the connections between brain and cognition. Using estimation data on neuron numbers in 111 bird species across 24 families, the authors show that number of neurons is positively associated with innovation propensity and encephalization.

Název v anglickém jazyce

Neuron numbers link innovativeness with both absolute and relative brain size in birds

Popis výsledku anglicky

A longstanding issue in biology is whether the intelligence of animals can be predicted by absolute or relative brain size. However, progress has been hampered by an insufficient understanding of how neuron numbers shape internal brain organization and cognitive performance. On the basis of estimations of neuron numbers for 111 bird species, we show here that the number of neurons in the pallial telencephalon is positively associated with a major expression of intelligence: innovation propensity. The number of pallial neurons, in turn, is greater in brains that are larger in both absolute and relative terms and positively covaries with longer post-hatching development periods. Thus, our analyses show that neuron numbers link cognitive performance to both absolute and relative brain size through developmental adjustments. These findings help unify neuro-anatomical measures at multiple levels, reconciling contradictory views over the biological significance of brain expansion. The results also highlight the value of a life history perspective to advance our understanding of the evolutionary bases of the connections between brain and cognition. Using estimation data on neuron numbers in 111 bird species across 24 families, the authors show that number of neurons is positively associated with innovation propensity and encephalization.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10613 - Zoology

Projekt

<a href="/cs/project/GA18-15020S" target="_blank" >GA18-15020S: Evoluce komplexity a procesní kapacity mozku u obojživelníků a plazů: Kvantitativní přístup k porozumění evoluce mozku u čtyřnožců</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

NATURE ECOLOGY &amp; EVOLUTION [online]

ISSN

2397-334X

e-ISSN

2397-334X

Svazek periodika

6

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

1381-1389

Kód UT WoS článku

000825839600003

EID výsledku v databázi Scopus

2-s2.0-85133856221