预期记忆:认知负载和任务焦点性的综合影响
G Cantarella1,2, S Mastroberardino3, P Bisiacchi4,5
1Department of Psychology, University of Bologna, Viale Berti Pichat, 5, 40127, Bologna, Italy. giovanni.cantarella2@unibo.it.
Brain structure & function
|June 25, 2023
概括
预期内存 (PM) 的性能取决于任务负载和焦点. 在高负荷条件下,后期的认知控制在后背皮质中进行,而在低负荷条件下,在腹角皮质中使用早期选择.
科学领域:
- 认知神经科学 认知神经科学
- 神经成像是一种神经成像.
- 人类大脑功能 人类大脑功能
背景情况:
- 预期记忆 (PM) 涉及与前脑和顶脑脑部相关的执行功能.
- 任务负载 (PM目标的数量) 和焦点 (目标与正在进行的任务关系) 影响PM性能.
- 了解PM中的认知控制机制对于解释执行功能至关重要.
研究的目的:
- 调查任务负载和焦点如何相互作用以影响前性记忆期间的认知控制.
- 为了测试高认知控制要求招募常见神经资源的假设.
- 在基于事件的PM任务中区分基础监测和检测的神经过程.
主要方法:
- 一个基于事件的前性记忆任务被设计为操作负载和焦点.
- 收集了行为数据 (反应时间) 和功能神经成像 (fMRI).
- 对于正在进行的任务监测和PM目标检测阶段,分别分析了大脑活动.
主要成果:
- 在行为上,焦点,高负载的PM目标的反应时间最慢.
- 神经成像显示,在检测过程中,在高负载条件下,左侧内硫激活.
- 在监测和检测期间,在非焦点性和低负载条件下观察到状回环的重叠激活.
结论:
- 认知控制机制根据任务负载和焦点不同.
- 低负载前性记忆利用了腹部角-角皮层的早期选择.
- 高负载的前性记忆涉及后期的处理阶段在背顶皮质,表明负载决定信息选择.
更多相关视频
07:59Using Practice Testing, Public Speaking, and Source Monitoring to Examine the Influences of Learning Strategies and Stress on Episodic Memory
Published on: June 14, 2019
8.0K
08:45A Dual Task Procedure Combined with Rapid Serial Visual Presentation to Test Attentional Blink for Nontargets
Published on: December 5, 2014
9.2K
相关概念视频
Role of Cerebellum and Prefrontal Cortex in Memory
501
The cerebellum, while traditionally associated with motor control, also plays a crucial role in memory, particularly in procedural memory, which involves learning motor tasks that become automatic through repetition. For example, studies have shown that when the cerebellum is damaged, individuals or animals lose the ability to learn conditioned motor responses, such as the conditioned eye-blink response in classical conditioning experiments with rabbits. This study demonstrates the...
501
Working Memory
387
Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this...
387
Interference and Decay
174
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...
174
Cognitivism
1.5K
Cognitive psychology emerged as a significant field in the mid-20th century. It focused on understanding humans' internal mental processes. This approach emphasizes how people perceive, remember, think, and solve problems—elements critical to human cognition.
Previously dominated by behaviorism, which prioritized observable behaviors and largely ignored mental processes, psychology transformed in the 1950s. Cognitive psychologists argue that understanding how we think and process...
Previously dominated by behaviorism, which prioritized observable behaviors and largely ignored mental processes, psychology transformed in the 1950s. Cognitive psychologists argue that understanding how we think and process...
1.5K
Information Processing Approach
80
The information-processing theory of cognitive development centers on fundamental mental processes, including attention, memory, and problem-solving skills. Researchers in this field examine how cognitive abilities, such as working memory, evolve and influence children's overall development. Studies indicate that children with stronger working memory tend to excel in reading comprehension, math, and problem-solving compared to peers with less efficient memory skills. Low working memory is...
80
Role of Hippocampus in Memory
352
The hippocampus, a critical brain structure, plays an essential role in memory processing, particularly in the formation and retrieval of memory. This small, seahorse-shaped region is located within the medial temporal lobe, with one hippocampus in each brain hemisphere. Experimental studies involving lesions in the hippocampi of rats have demonstrated significant impairments in tasks such as object recognition and maze navigation, indicating the hippocampus involvement in both recognition and...
352
