Related Experiment Video
Updated: Jun 5, 2026
06:11
High-definition Transcranial Direct Current Stimulation over Right Dorsolateral Prefrontal Cortex to Enhance Metacognitive Sensitivity
Published on: September 26, 2025
The likelihood of cognitive enhancement.
Gary Lynch1, Linda C Palmer, Christine M Gall
1Department of Psychiatry and Human Behavior, University of California, Irvine CA 92697-4291, USA. glynch@uci.edu
Pharmacology, Biochemistry, and Behavior
|January 11, 2011
Summary
Cognitive enhancers like Ritalin may improve basic functions but not complex tasks. New drugs targeting neural pathways show promise for enhancing cognitive capabilities, not just efficiency.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Pharmacology
Background:
- Cognitive enhancers are of increasing interest for improving performance in healthy individuals.
- Current drugs like Ritalin and modafinil primarily affect psychological states and basic cognitive operations (attention, memory) with limited evidence for complex cognitive enhancement.
- A classification system is proposed based on psychological effect, neurobiological mechanism, and efficiency versus capabilities.
Purpose of the Study:
- To evaluate the potential of future cognitive enhancement drugs for healthy individuals.
- To categorize potential cognitive enhancers based on their mechanisms and effects.
- To explore neurobiological targets for enhancing complex cognitive operations.
Main Methods:
- Analysis of existing data on Ritalin and modafinil.
- Review of research on memory-enhancing agents and their effects on long-term potentiation (LTP).
- Examination of neurobiological candidates targeting cortical networks, including nicotinic receptor agonists and ampakines.
- Utilizing brain imaging in primates and behavioral data.
Main Results:
- Ritalin and modafinil show limited efficacy in improving complex cognitive processing.
- Memory-enhancing agents often positively affect LTP, but their impact on cognitive performance is not well-established.
- Ampakines demonstrate potential by expanding cortical networks during complex tasks, suggesting a capability enhancement.
- Nicotinic receptor modulators and ampakines are identified as promising candidates targeting cortical networks.
Conclusions:
- Future cognitive enhancers may offer genuine improvements in cognitive capabilities, not just efficiency.
- Distinguishing between enhancing efficiency and creating new capabilities is crucial for understanding cognitive enhancement.
- Advances in behavioral science and neurobiology offer opportunities for developing and translating cognitive enhancers.
More Related Videos
Related Concept Videos
01:30Cognitive Enhancers: Cholinesterase Inhibitors and NMDA Receptor Antagonists
Cognitive enhancers, also known as "smart drugs," are substances used to enhance memory, mental alertness, and concentration. These can be natural or synthetic and improve cognition in conditions like Alzheimer's disease (AD) and other neurodegenerative diseases. Some common examples include caffeine, amphetamines, methylphenidate, modafinil, arecoline, donepezil, vortioxetine, and piracetam. These enhancers work on the principle of synaptic plasticity and altered circuit function. They...
01:29The Influence of Affect on Cognition
Positive affect significantly influences cognitive processes, including evaluation, memory, creativity, and social judgments. Compared to negative affect, positive emotional states promote more favorable interpretations of stimuli, cognitive flexibility, and heuristic processing. These effects highlight emotions' powerful role in shaping how individuals perceive, remember, and interact with the world.Influence on Evaluation and AttributionWhen individuals experience positive affect, they are...
01:17Cognitivism
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 information is...
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 information is...
01:30Cognitive Development During Adulthood
Cognitive development continues throughout adulthood, undergoing significant shifts across early, middle, and late stages. Individual transition occurs from adolescent idealism to pragmatic and adaptable thinking in early adulthood. During this period, individuals learn to integrate personal beliefs with the recognition that other perspectives are equally valid. Exposure to the complexities of modern society, diverse experiences, and higher education contribute to this adaptive thought process,...
01:25Long-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...
01:35Long-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.