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相关概念视频

Schemas01:42

Schemas

11.6K
A schema is a mental construct consisting of a cluster or collection of related concepts (Bartlett, 1932). There are many different types of schemata, and they all have one thing in common: schemata are a method of organizing information that allows the brain to work more efficiently. When a schema is activated, the brain makes immediate assumptions about the person or object being observed.
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Natural Selection and Adaptation01:15

Natural Selection and Adaptation

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Natural selection, a fundamental concept in evolutionary biology, is the mechanism by which evolution is driven, favoring organisms that are best adapted to their environments. This process enhances their chances of survival and reproduction. Adaptation, a key outcome of this process, involves genetic modifications that optimize an organism's functionality under specific environmental challenges, such as extreme cold or thinner air at high altitudes.
Beyond physical adaptations,...
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Nonconscious Mimicry01:13

Nonconscious Mimicry

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Nonconscious mimicry occurs when individuals alter their mannerisms to match the behaviors and expressions of those nearby, without intention.
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Social Facilitation01:04

Social Facilitation

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Not all intergroup interactions lead to negative outcomes. Sometimes, being in a group situation can improve performance. Social facilitation occurs when an individual performs better when an audience is watching than when the individual performs the behavior alone. This typically occurs when people are performing a task for which they are skilled.
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Deindividuation00:57

Deindividuation

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Deindividuation is a form of social influence on an individual’s behavior such that the individual engages in unusual or non-normal behavior while in a group setting. Why? Because in these group settings, the individual no longer sees themselves as an individual anymore, disinhibiting their behavior and personal restraint.
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Evolutionary Psychology01:20

Evolutionary Psychology

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Evolutionary psychology explores the origins of human behavior and mental processes by framing them within the context of natural selection, a theory famously propounded by Charles Darwin. This field asserts that many behaviors common across human societies — ranging from instinctive fear reactions to complex social interactions — arose as evolutionary adaptations. These adaptations enhanced the survival and reproductive success of our ancestors, thereby becoming embedded in the...
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相关实验视频

Updated: Jul 9, 2025

A Real-Time Interactive System for Studying Confrontational Pursuit Behavior in Rodents
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A Real-Time Interactive System for Studying Confrontational Pursuit Behavior in Rodents

Published on: May 16, 2025

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人类逃生中的功能复杂性.

Juliana K Sporrer1, Jack Brookes1, Samson Hall1

  • 1Max Planck UCL Centre for Computational Psychiatry and Ageing Research and Wellcome Centre for Human Neuroimaging, UCL Queen Square Institute of Neurology, University College London, London WC1B 5EH, UK.

iScience
|November 29, 2023
PubMed
概括

在面临威胁时,人类的生存决策不是本能的,而是涉及到灵活的计算. 逃生策略可以动态地适应不断变化的环境,整合多种因素以快速做出决策.

关键词:
行为神经科学 行为神经科学生物科学 生物科学计算机科学 计算机科学神经科学是一个神经科学.

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Neural Circuit Recording from an Intact Cockroach Nervous System
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Neural Circuit Recording from an Intact Cockroach Nervous System

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Published on: May 16, 2025

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A Behavioral Assay for Investigating the Role of Spatial Memory During Instinctive Defense in Mice
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科学领域:

  • 神经科学是一个神经科学.
  • 认知科学 认知科学
  • 计算生物学 计算生物学

背景情况:

  • 在受到威胁的情况下,生存需要在错误最小的情况下快速做出决定.
  • 这对大脑来说是一个重大的计算挑战.

研究的目的:

  • 研究人类逃生决策背后的计算机制.
  • 模拟大脑如何快速解决生存挑战.

主要方法:

  • 利用完全沉浸式虚拟现实与13种自然威胁.
  • 研究了59名人类参与者的逃生决策.
  • 进行了扰动实验,以测试决策算法属性.

主要成果:

  • 根据环境变化,逃生决策会动态更新.
  • 决策包括影响时间,威胁特征,预测轨迹和个人特征.
  • 决策算法展示了规划能力,并可以纳入新的行动.
  • 信息搜索和食抑制表现出有限的值敏感性.

结论:

  • 人类逃生决策不是固定的,而是来自灵活的计算架构.
  • 这项研究为人类大脑中快速生存决策的计算模型提供了基础步骤.