Emma Bernardo Sampedro
12.6K posts
@postsinaptica
Psicóloga y periodista autodestructivamente perseverante ✹ Head of Marketing en @neovantas ✹ I ❤️ #BehavioralEconomics
This is one of the best review papers I've read in a while. Looking at cognition through the lens of metabolic costs is incredibly fascinating, especially in the context of neural efficiency. Individuals with higher intelligence generally show lower glucose metabolism during task performance, suggesting they require less energy to achieve the same or better results, and their neuronal computation is more efficient. After practice or learning, metabolic demand decreases more sharply for higher-IQ folks (indicating faster neural adaptation, quicker optimization of circuitry, less redundant processing). In straightforward metabolic terms: higher intelligence = lower energy cost for the same cognitive computation. Physiologically, that means fewer neurons firing to handle the info, less excitatory synaptic activity, lower ATP and glucose consumption, more optimal recruitment of hub regions and network cores, etc.
