Related Experiment Video
Updated: Jul 1, 2026
09:15
The Attentional Set Shifting Task: A Measure of Cognitive Flexibility in Mice
Published on: February 4, 2015
Noradrenergic modulation of cognitive flexibility in problem solving.
D Q Beversdorf1, J D Hughes, B A Steinberg
1Department of Neurology, Ohio State University Medical Center, Columbus 43210, USA.
Neuroreport
|October 8, 1999
Summary
The noradrenergic system influences cognitive flexibility. Blocking beta-adrenergic receptors with propranolol improved performance on complex problem-solving tasks, suggesting a modulatory effect.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Pharmacology
Background:
- Stress impairs creative performance.
- Beta-adrenergic receptor blockers enhance test performance in anxious individuals.
- Catecholamine precursors like L-DOPA can decrease semantic network flexibility.
Purpose of the Study:
- To investigate the impact of noradrenergic system modulation on cognitive flexibility during problem-solving tasks.
- To determine if propranolol or ephedrine affects cognitive flexibility differently.
Main Methods:
- Eighteen healthy subjects participated in the study.
- Participants completed three problem-solving tasks: number series, shape manipulation, and anagrams.
- Performance was assessed 45 minutes after administration of propranolol, a placebo, or ephedrine.
Main Results:
- Performance on anagrams, a task heavily reliant on cognitive flexibility, was significantly improved by propranolol compared to ephedrine.
- Subjects showed shorter solution times (logarithmic scores) on anagrams after propranolol administration.
Conclusions:
- The noradrenergic system plays a crucial role in modulating cognitive flexibility.
- Beta-adrenergic receptor blockade may enhance cognitive flexibility in problem-solving contexts.
Related Concept Videos
01:14Decision Making: Traditional Method
The process of hypothesis testing based on the traditional method includes calculating the critical value, testing the value of the test statistic using the sample data, and interpreting these values.
First, a specific claim about the population parameter is decided based on the research question and is stated in a simple form. Further, an opposing statement to this claim is also stated. These statements can act as null and alternative hypotheses, out of which a null hypothesis would be a...
First, a specific claim about the population parameter is decided based on the research question and is stated in a simple form. Further, an opposing statement to this claim is also stated. These statements can act as null and alternative hypotheses, out of which a null hypothesis would be a...
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...
01:21Cognitive Learning
Cognitive learning is based on purposive behavior, incidental learning, and insight learning.
E. C. Tolman's theory of purposive behavior emphasizes that much behavior is goal-directed. He argued that to understand behavior, we must look at the entire sequence of actions leading to a goal. For instance, high school students study hard, not just due to past reinforcement but also to achieve the goal of getting into a good college.
Tolman introduced the idea that behavior is influenced by...
E. C. Tolman's theory of purposive behavior emphasizes that much behavior is goal-directed. He argued that to understand behavior, we must look at the entire sequence of actions leading to a goal. For instance, high school students study hard, not just due to past reinforcement but also to achieve the goal of getting into a good college.
Tolman introduced the idea that behavior is influenced by...
01:29Problem-Solving
Effective problem-solving consists of two steps: 1. identifying the problem and 2. selecting the appropriate problem-solving strategy (i.e., a plan of action used to find a solution). Humans use four problem-solving strategies:
01:27Coping Strategies: Problem Focused
Coping strategies are methods people use to manage, tolerate, or reduce the effects of stressors. These strategies involve both behavioral and psychological actions to handle stressful situations. One common approach is problem-focused coping, which aims to change or eliminate the source of stress rather than merely addressing its consequences. This method involves taking direct action to resolve the issue causing stress.
For example, consider a student who struggles to understand their...
For example, consider a student who struggles to understand their...
01:19Counterfactual Thinking
Counterfactual thinking is a cognitive process wherein individuals mentally reconstruct alternative versions of past events, often beginning with “what if” or “if only.” This reflective mechanism plays a significant role in shaping emotional experiences and guiding future behavior. Though typically triggered by unfavorable or unexpected outcomes, counterfactual thinking can also emerge in mundane, everyday decisions and experiences, revealing its deep entrenchment in human cognition.Types of...