感知可见性底层的皮层动力学:与事件相关的前向掩盖的潜在调查
Afife Turker1,2,3, Haluk Ogmen4, Hulusi Kafaligonul1,2,3,5
1Department of Neuroscience, Bilkent University, Ankara, Türkiye.
The European journal of neuroscience
|October 25, 2025
概括
前方掩盖显著影响视觉感知,与事件相关的潜能 (ERP) 揭示神经过程. 短时间的刺激开始异步和高对比度增强抑制,而更长的持续时间显示促进.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 视觉感知 视觉感知 视觉感知
背景情况:
- 前向掩盖对于理解视觉处理动态至关重要.
- 前方掩盖的神经相关物和皮质过程仍未得到充分探索.
- 对于前向掩盖的特定事件相关潜在 (ERP) 组件尚未确定.
研究的目的:
- 识别与前向掩盖相关的ERP组件.
- 为了研究影响感知可见性的皮质过程,在前方掩盖下进行前方掩盖.
- 为了检查刺激发作异步 (SOA) 和面罩对目标 (M/T) 对比比对前向掩饰的影响.
主要方法:
- 一个ERP研究结合了前掩盖范式.
- 观察者在一个目标上执行了轮区分任务.
- 操纵SOA和M/T对比率以创建各种掩盖条件.
主要成果:
- 感知到的目标可见性取决于SOA,在短SOA时有强烈的抑制.
- 面具与目标对比率显著提高了抑制的程度.
- 在早期P1和晚期阳性成分中观察到非线性抑制,随着较短的SOA和较高的M/T对比度而增加.
- N1组件显示了便利化,在较长的SOA中占主导地位.
结论:
- 调查结果提供了对前掩盖的ERP相关的见解.
- 突出了视觉感知上情境影响的多过程性质.
- 支持基于实证和建模研究的前向掩盖的三过程解释.
更多相关视频
06:50Analyzing Neural Activity and Connectivity Using Intracranial EEG Data with SPM Software
Published on: October 30, 2018
9.9K
06:46Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity
Published on: March 18, 2019
7.5K
相关概念视频
Elastic Collisions: Case Study
Elastic collision of a system demands conservation of both momentum and kinetic energy. To solve problems involving one-dimensional elastic collisions between two objects, the equations for conservation of momentum and conservation of internal kinetic energy can be used. For the two objects, the sum of momentum before the collision equals the total momentum after the collision. An elastic collision conserves internal kinetic energy, and so the sum of kinetic energies before the collision equals...
Sensory Functions of the Skin
The skin is the largest organ of the human body and plays a crucial role in our sensory perception. It contains a vast network of sensory receptors that contribute to the skin's protective function by perceiving physical, biological, and environmental cues and generating relevant responses.
There are two main categories of receptors on the skin: capsulated and non-capsulated. The non-capsulated ones are mainly the pain receptors. The capsulated ones can be further categorized based on the...
There are two main categories of receptors on the skin: capsulated and non-capsulated. The non-capsulated ones are mainly the pain receptors. The capsulated ones can be further categorized based on the...
Accessory Structures of the Skin: Hair and Hair Follicles
Hair and hair follicles are integral components of the integumentary system. Hair is a filamentous structure composed mainly of a protein called keratin. It is found on the surface of the skin throughout the body, except for areas such as the palms of the hands and soles of the feet.
Hair is a keratinous filament growing out of the epidermis. It is primarily made of dead, keratinized cells. Hair strands originate at the epidermal penetration called the hair follicle. The hair shaft is the part...
Hair is a keratinous filament growing out of the epidermis. It is primarily made of dead, keratinized cells. Hair strands originate at the epidermal penetration called the hair follicle. The hair shaft is the part...
Frictional Forces on Flat Belts
Flat belts are commonly used in various industrial applications for transmitting power from one pulley to another. When a flat belt is wrapped around a set of pulleys, it experiences different tensions at the driving pulley ends due to the friction between the belt and pulley surface. When the pulley moves in a counterclockwise direction, the tension T2 on the opposite side of the pulley where the belt is moving away from is higher than the tension T1 on the side where the belt is moving...
Subliminal Perception
Subliminal perception refers to the processing of sensory information that occurs below the level of conscious awareness. Researchers study subliminal perception by presenting a stimulus, such as a word or image, very quickly, typically around 50 milliseconds. This rapid presentation is often followed by another stimulus, such as a pattern of dots or lines, which blocks further mental processing of the initial stimulus. As a result, if participants cannot identify the initial stimulus better...
Dark Triad and Person Perception
Person perception is influenced by both external behaviors and the observer’s internal characteristics, including personality traits. Individuals with dark personality traits, comprising psychopathy, Machiavellianism, and narcissism — collectively known as the dark triad – exhibit manipulative and exploitative tendencies in social contexts. These traits affect how they perceive others and how they are perceived.The Role of Dark Personality Traits in Person PerceptionBlack et al. (2014) explored...
