饿的时候大脑会开启“省电模式”，让人“变笨”

Core Insights - The article discusses a study revealing that the brains of mice enter a "low-power mode" when food is scarce, reducing energy consumption at the cost of sensory precision [3][4][5] Group 1: Energy Conservation Mechanism - When mice experience prolonged hunger, their brain neurons reduce ATP usage by up to 29%, leading to decreased visual processing accuracy [3][4][10] - This energy-saving strategy is a response to food scarcity, allowing the brain to prioritize essential functions for survival [12][13] Group 2: Impact on Sensory Perception - Mice in a low-power mode show diminished ability to distinguish between visual stimuli, particularly when the differences are subtle, indicating a trade-off between energy conservation and sensory acuity [12][13] - The study suggests that the brain prioritizes survival-related functions over detailed sensory processing when energy is limited [13][14] Group 3: Broader Implications - The findings raise questions about how nutritional status affects cognitive functions and sensory perception across different species, including humans [16][17] - The research highlights the need for careful experimental design in neuroscience to understand the effects of physiological states on brain function [16][17]