感知性决策与植物遗传突出的刺激有关
Sekine Ozturk1, Tamara J Sussman2, Jingwen Jin3,4
1Department of Psychology, Stony Brook University, Stony Brook, NY USA.
Affective science
|March 17, 2025
概括
我们的感知优先考虑像蜘蛛这样具有进化意义的威胁. 自动 (自下而上) 和目标驱动 (自上而下) 两种因素都影响了这一点,提高了检测速度和准确性.
科学领域:
- 认知心理学 认知心理学
- 神经科学是一个神经科学.
- 进化心理学 进化心理学
背景情况:
- 遗传学上突出的刺激,如蜘蛛,是进化上重要的威胁.
- 特定的恐惧症通常涉及这些进化突出的刺激.
- 在处理这些刺激时,自动 (自下而上) 和目标驱动 (自上而下) 因素的相互作用尚未得到充分理解.
研究的目的:
- 研究进化突出刺激 (蜘蛛与) 的感知优先级.
- 检查自上而下的 (目标驱动) 和自下而上的 (刺激驱动) 因素对感知决策的影响.
- 阐明了这种优先级的基础上的计算机制.
主要方法:
- 感知心理学被用来确定蜘蛛和图像的绝对检测值.
- 一个由两种替代强制选择任务组成的任务评估了在自上而下的提示条件下检测的准确性和速度.
- 一个分层的漂移扩散模型分析了证据积累和决策偏见.
主要成果:
- 在较低的感知值检测到蜘蛛比.
- 与线索相比,自上而下的蜘蛛线索提高了检测速度和准确性.
- 蜘蛛线索通过改变证据积累的起点和效率来改变决策.
结论:
- 这些发现支持进化突出刺激的感知优先级.
- 底层向上刺激的突出性和自上而下的目标驱动因素都有助于这种优先级.
- 计算模型揭示了这些因素如何相互作用,以促进有效的威胁检测.
相关概念视频
Phylogenetic Trees
45.0K
Phylogenetic trees come in many forms. It matters in which sequence the organisms are arranged from the bottom to the top of the tree, but the branches can rotate at their nodes without altering the information. The lines connecting individual nodes can be straight, angled, or even curved.
45.0K
Gene Evolution - Fast or Slow?
7.0K
The genomes of eukaryotes are punctuated by long stretches of sequence which do not code for proteins or RNAs. Although some of these regions do contain crucial regulatory sequences, the vast majority of this DNA serves no known function. Typically, these regions of the genome are the ones in which the fastest change, in evolutionary terms, is observed, because there is typically little to no selection pressure acting on these regions to preserve their sequences.
In contrast, regions which code...
In contrast, regions which code...
7.0K
Perception
423
Perception is a fundamental psychological process that enables individuals to organize, interpret, and consciously experience sensory information. This process is crucial for understanding and interacting with the world around us. It includes both bottom-up and top-down processing, each playing a distinct role in how we perceive our environment.
Bottom-up processing begins at the sensory level, where receptors detect external environmental stimuli. These could include the tactile sensation of...
Bottom-up processing begins at the sensory level, where receptors detect external environmental stimuli. These could include the tactile sensation of...
423
Subliminal Perception
227
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...
227
Reason and Intuition
6.3K
The human brain processes information for decision-making using one of two routes: an intuitive system and a rational system (Epstein, 1994; popularized by Kahneman, 2011 as System 1 and System 2, respectively). The intuitive system is quick, impulsive, and operates with minimal effort, relying on emotions or habits to provide cues for what to do next, while the rational system is logical, analytical, deliberate, and methodical. Research in neuropsychology suggests that the...
6.3K
Factors Affecting Perception
1.4K
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...
1.4K


