单次会话和重复的阳横直流刺激在右背侧前额叶皮质上增加反射思维,但不是工作记忆,更新性能
Daniel R Edgcumbe1,2, Davide Rivolta3, Michael A Nitsche4,5
1School of Psychology, University of East London, London, United Kingdom.
Heliyon
|September 10, 2024
概括
在右脊侧前额叶皮层 (DLPFC) 上进行的阳横直流刺激 (tDCS) 可以增强反射思维和判断能力. 这些改进独立于工作记忆能力或认知特征.
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
- 神经调节是一种神经调节.
背景情况:
- 在右脊侧前额皮层 (DLPFC) 施加的阳道跨直流刺激 (tDCS) 影响认知功能.
- 在理解tDCS对反射思维表现的影响方面存在差距.
研究的目的:
- 调查单个和重复的阳极tDCS对右侧DLPFC对判断和决策的影响.
- 确定这些影响是否与工作记忆 (更新) 或认知抑制有关.
主要方法:
- 参与者接受了单次或重复的阳极tDCS,而不是右边的DLPFC或假刺激.
- 认知指标 (思维倾向,冲动性,认知能力) 在刺激前被评估.
- 使用认知反射测试 (数值和口头),不相称的基率 vignettes 和工作记忆任务来评估表现.
主要成果:
- 单个tDCS会话提高了反思思维的表现,特别是在不一致的基率任务和数值CRT上.
- 重复的tDCS会话特别增强了数字CRT分数.
- tDCS并没有显著改善工作记忆 (更新) 性能.
结论:
- 正确的DLPFC在反思性思维中发挥作用,独立于工作记忆更新或一般认知特征.
- tDCS是一种可行的工具,可以调节判断和决策的特定方面.
相关概念视频
Long-term Potentiation
Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre- and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
Long-term Potentiation
Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
Hebbian LTP
LTP can occur when presynaptic neurons...
Hebbian LTP
LTP can occur when presynaptic neurons...
Higher Mental Functions of Brain: Learning and Memory
Memory is one of the most vital higher mental functions of the brain. Memory is closely related to learning because it enables us to retain information and experiences from our past to use them in our present life. It also helps us to remember facts, events, and skills, such as riding a bike or swimming. There are two types of memory — declarative memory, which involves memorizing facts or events, and procedural memory, which enables us to remember how to do something like writing or playing an...
Chunking and Rehearsal in Sensory Memory
Improving short-term memory can be achieved through techniques like chunking and rehearsal. Chunking involves organizing information into larger, more manageable units. This technique is particularly useful for information that exceeds the typical memory span of between five and nine items. For instance, logging into an online account with a password like "ta89vq0179gz" involves grouping letters and numbers into three chunks—ta89, vq01, and 79gz. It makes large amounts of information more...
Role of Cerebellum and Prefrontal Cortex in Memory
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 cerebellum's...


