在儿童,青少年和成年人中恐惧灭绝的保留
Ebba Widegren1, Johan Vegelius1, Matilda A Frick2
1Department of Medical Sciences, Experimental Cognitive and Affective Neuroscience Lab, Uppsala University, Uppsala, Sweden.
Developmental cognitive neuroscience
|January 12, 2025
概括
这项研究发现,儿童,青少年和成年人表现出类似的恐惧灭绝和保留. 与一些理论相反,没有证据表明青少年的恐惧反应"灭绝".
科学领域:
- 神经科学是一个神经科学.
- 发展心理学 发展心理学
- 认知科学 认知科学
背景情况:
- 青少年恐惧的灭绝和保留被认为是受损的,但由于有限的包括年龄的研究,研究是不确定的.
- 以前关于青少年恐惧回归的研究结果缺乏一致性,需要在不同发育阶段进行比较研究.
研究的目的:
- 调查儿童,青少年和成年期恐惧灭绝和保留的发展差异.
- 检查这些年龄组的恐惧记忆的生理 (皮肤导电反应) 和神经 (fMRI) 相对应物.
- 为了测试"青少年灭绝潜水"在恐惧处理中的假设.
主要方法:
- 一个为期两天的恐惧调节范式,涉及习惯,获取,灭绝和24小时的灭绝保留测试.
- 招募了三个年龄组:儿童 (6-9岁),青少年 (13-17岁) 和成年人 (30-40岁).
- 在保留测试期间测量皮肤导电反应 (SCR) 和功能磁共振成像 (fMRI).
主要成果:
- 所有年龄组都表现出恐惧获得和灭绝,在灭绝保留期间具有相似的SCR.
- 在保留期间的神经恐惧反应在各组中基本上是相似的,青少年表现出比儿童更强烈的杏仁体反应.
- 没有发现青少年灭绝的重大证据,也没有发现整个发育过程中恐惧条件的大幅度渐进变化.
结论:
- 人类恐惧调节和灭绝过程从童年到成年似乎相对稳定,这挑战了一些基于动物的模型.
- 该研究没有支持青少年灭绝的存在,这表明比以前假设的更有连续性.
- 在整个发育过程中,类似的生理和神经机制是恐惧处理的基础,观察到与年龄相关的微小差异.
相关概念视频
Generalization, Discrimination, and Extinction
426
Generalization, discrimination, and extinction are key concepts in operant conditioning that influence how behaviors are learned and maintained.
Generalization occurs when a behavior reinforced in one context is performed in similar situations. For instance, a student who studies diligently for calculus and receives excellent grades might apply the same study habits to psychology and history, expecting similar results. Generalization shows how learning in one setting can influence behavior in...
Generalization occurs when a behavior reinforced in one context is performed in similar situations. For instance, a student who studies diligently for calculus and receives excellent grades might apply the same study habits to psychology and history, expecting similar results. Generalization shows how learning in one setting can influence behavior in...
426
Preparedness and Phobias
94
Human fear responses to certain stimuli, such as darkness, heights, deep water, and blood, can often arise despite the absence of direct negative experiences. This phenomenon is rooted in evolutionary psychology, which posits that humans have developed a predisposition to fear stimuli that historically posed significant survival threats. This predisposition, known as preparedness, suggests that early humans who developed a fear of potentially dangerous entities, such as venomous snakes and...
94
Avoidance Learning and Learned Helplessness
1.7K
Avoidance learning and learned helplessness are critical concepts in understanding behavioral responses to negative stimuli.
Avoidance learning occurs when an organism learns that a specific behavior can prevent an unpleasant outcome. For example, a student who receives a bad grade may start studying harder to avoid future poor grades. This behavior persists even when the negative outcome is no longer present. Avoidance learning is powerful because it maintains behavior in the absence of the...
Avoidance learning occurs when an organism learns that a specific behavior can prevent an unpleasant outcome. For example, a student who receives a bad grade may start studying harder to avoid future poor grades. This behavior persists even when the negative outcome is no longer present. Avoidance learning is powerful because it maintains behavior in the absence of the...
1.7K
Traumatic Memory
72
Emotionally traumatic events often lead to memories that are exceptionally vivid and enduring, sometimes persisting with remarkable clarity throughout an individual's life. A classic example of this phenomenon is a person who survives a car accident. Even years later, they may recall every detail of the event with startling accuracy — the screeching of the tires, the jarring impact, and the acrid smell of burning rubber. Such vividness contrasts sharply with how an individual...
72
Interference and Decay
107
Forgetting is a complex cognitive phenomenon influenced by several factors, among which interference and decay are particularly prominent. These processes explain why individuals often struggle to retrieve specific information from memory, leading to lapses in recall that can be observed in everyday situations.
Interference occurs when competing memories hinder the retrieval of particular information. It can be classified into two types: proactive and retroactive interference. Proactive...
Interference occurs when competing memories hinder the retrieval of particular information. It can be classified into two types: proactive and retroactive interference. Proactive...
107
Repressed Memory
61
Repressed memories are a psychological phenomenon where memories of traumatic events are unconsciously blocked from a person's awareness. This process occurs as a defense mechanism, protecting the mind from the emotional impact of distressing or painful experiences. For example, a person who has experienced childhood trauma may grow up with no conscious recollection of the event. In such cases, the memories are thought to be buried deep within the subconscious, inaccessible to the conscious...
61


