.png){kind=icon}
.png){kind=icon}
Return
Corvids optimize working memory by categorizing continuous stimuli
.png){kind=icon}
OA
AI
DOI：10.1038/s42003-023-05442-5.png)
.png){kind=icon}
.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
Working memory (WM) is a crucial element of the higher cognition of primates and corvid songbirds. Despite its importance, WM has a severely limited capacity and is vulnerable to noise. In primates, attractor dynamics mitigate the effect of noise by discretizing continuous information. Yet, it remains unclear whether similar dynamics are seen in avian brains. Here, we show jackdaws (Corvus monedula) have similar behavioral biases as humans; memories are less precise and more biased as memory demands increase. Model-based analysis reveal discrete attractors are evenly spread across the stimulus space. Altogether, our comparative approach suggests attractor dynamics in primates and corvids mitigate the effect of noise by systematically drifting towards specific attractors. By demonstrating this effect in an evolutionary distant species, our results strengthen attractor dynamics as general, adaptive biological principle to efficiently use WM. Using a comparative approach to advance our understanding of working memory from an evolutionary perspective it is shown that corvid working memory has trade-offs between resolution and temporal stability, similar to what has been reported for primates.
Keywords:
ANIMAL COLOR-VISION
SERIAL DEPENDENCE
MATLAB-TOOLBOX
CAPACITY
REPRESENTATIONS
MECHANISMS
EVOLUTION
ATTENTION
LIMIT
TIME
AI Summary
Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.
Journal
IF:
5.1
Papers:
1.0W
Citations:
3.2W
View more organizations