在想象中比在现实中受苦更多吗? 心理图像和恐惧的概括化
Andrew L Lyons1, McKenzie Andries1, Ryan M Ferstl1
1Brain & Cognitive Sciences, Dept. of Psychology, University of Manitoba, Canada.
Behavioural brain research
|July 15, 2024
概括
这项研究探讨了使用心理图像与视觉感知来调节恐惧. 结果表明,基于图像的恐惧与基于感知的恐惧类似地泛化,挑战了从较弱的心理表象中更广泛泛化的理论.
科学领域:
- 认知神经科学 认知神经科学
- 恐惧调节研究 恐惧调节研究
- 心理生理学 心理生理学
背景情况:
- 心理图像通常被认为是一种较弱的感知过程,可能导致不那么具体的恐惧获取和更广泛的恐惧概括.
- 了解通过心理图像获得的恐惧的特异性和概括性对于理解恐惧学习机制至关重要.
研究的目的:
- 调查通过心理图像获得的恐惧条件是否会导致更广泛的恐惧泛化,而不是通过直接视觉感知获得的恐惧条件.
- 为了比较由想象与感知刺激引起的恐惧反应的特异性和持久性.
主要方法:
- 对98名参与者进行了为期两天的差异性恐惧调节实验.
- 参与者被分为两组:一组通过想象加博尔补丁 (CS+) 与轻微冲击 (US) 配对进行恐惧调节,而另一组接受了相同刺激的视觉呈现.
- 用类似的加博补丁方向 (GCS) 评估恐惧泛化,在没有冲击的第二天测试了持久性,使用自我报告和皮肤导电性反应 (SCR) 措施.
主要成果:
- 与假设相反,在第一天,基于自我报告和SCR,在图像和感知组之间没有观察到恐惧概括的显著差异.
- 在第二天,两组人都对GCS表现出持续的恐惧反应,而没有发生冲击,这表明基于图像的恐惧的持久性.
- 该研究没有发现与感知组相比,在图像组中存在过度概括恐惧的证据.
结论:
- 基于图像的恐惧调节与感知获得的恐惧调节的程度相似.
- 基于图像的恐惧的持久性是显而易见的,这表明它在没有直接感知输入的情况下随着时间的推移而持久.
- 进一步的研究可能会探索与基于感知的恐惧相比,基于图像的恐惧的独特灭绝特性.
相关概念视频
Preparedness and Phobias
99
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...
99
Traumatic Memory
83
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...
83
Role of Amygdala in Memory
194
The amygdala is a small, almond-shaped structure responsible for processing and storing memories, particularly those linked to emotions like fear and stress. It plays an essential role in the brain's response to emotionally significant events and often enhances memory formation by triggering stress hormone release. The amygdala is vital for encoding and retrieving memories associated with fear or stress, a process that is adaptive by helping organisms avoid dangerous situations.
One of the...
One of the...
194
Factors Affecting Perception
1.6K
Perception is influenced by perceptual set, context, motivation, and emotion. Perceptual set, or perceptual expectancy, refers to the tendency to perceive things in a particular way, influenced by previous experiences and expectations. This phenomenon affects the interpretation of stimuli, creating a set of mental tendencies and assumptions that impact sensory perceptions of sound, taste, touch, and sight.
An illustrative example of a perceptual set is the scenario where an airline pilot told...
An illustrative example of a perceptual set is the scenario where an airline pilot told...
1.6K
Nightmares and Night Terrors
82
Nightmares and night terrors represent two distinct types of sleep disturbances that differ in timing, characteristics, and the sleeper's recall of the event. Nightmares are vivid, disturbing dreams that usually awaken the sleeper from REM sleep, a stage of sleep where brain activity is high, and dreams are most frequent. Upon awakening, individuals often have detailed recollections of their nightmares, which can include themes of threats to survival, security, or self-esteem.
Nightmares...
Nightmares...
82
Repressed Memory
76
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...
76


