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(Left) The optic lobes are thought to be involved in visual processing. In this study, researchers found that guppies with larger optic lobes more quickly learned a visual discrimination task—identifying which color well contained food. (Right) The fish telencephalon is thought to be involved in spatial learning, memory, and inhibitory control. Here, the researchers found that a larger telencephalon might enhance the fish’s cognitive flexibility, allowing them to more quickly associate food with a new color after the researchers switched it.
Infographic: Two Guppy Brain Regions May Help Them Learn Tasks
While guppies with larger optic lobes were champions at learning visual discrimination tasks, guppies with larger telencephalons fared better when researchers switched things up.
Infographic: Two Guppy Brain Regions May Help Them Learn Tasks
Infographic: Two Guppy Brain Regions May Help Them Learn Tasks

While guppies with larger optic lobes were champions at learning visual discrimination tasks, guppies with larger telencephalons fared better when researchers switched things up.

While guppies with larger optic lobes were champions at learning visual discrimination tasks, guppies with larger telencephalons fared better when researchers switched things up.

optic lobe

Photo of a Guppy fish
Fish Brain Region Size Correlates with Cognitive Flexibility
Natalia Mesa, PhD | Nov 14, 2022 | 3 min read
The relative sizes of specific parts of the guppy brain may explain why some fish are better at learning certain tasks than others. 
A photo of a termite’s head with its brain clearly visible
Termite Brains Anticipate Future Visual Challenges
Chloe Tenn | Feb 1, 2022 | 2 min read
Dampwood termites with the potential to leave the colony have larger optic lobes before ever being exposed to different visual environments, an example of predictive brain plasticity.
octopus blue
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Chloe Tenn | Jan 20, 2022 | 3 min read
The size and complexity of cephalopod brain structures differ depending on the habitats the creatures occupy, a study finds.
Image of the Day: Fly Sight
The Scientist | Sep 3, 2017 | 1 min read
In the developing Drosophila visual system, signals from glia cultivate the growth of neurons from immature cells.
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