Related Experiment Video
Updated: Jan 29, 2026
13:09
Using Brain Activation nir-HEG/Q-EEG and Execution Measures CPTs in a ADHD Assessment Protocol
Published on: April 1, 2018
11.0K
Grooved Pegboard Test as a measure of executive functioning.
Kathryn Ann Tolle1,2, Annalise M Rahman-Filipiak2,3, Andrew C Hale2,3
1Mental Health 116C, VA Ann Arbor Healthcare System, Ann Arbor, Michigan, USA.
Applied Neuropsychology. Adult
|February 9, 2019
Summary
Rule violations on the Grooved Pegboard Test (GPT) can indicate executive dysfunction, specifically inhibitory control issues. Observing two or more errors suggests potential cognitive impairment, aiding in neuropsychological evaluations.
Area of Science:
- Neuropsychology
- Cognitive Neuroscience
Background:
- The Grooved Pegboard Test (GPT) is primarily a motor function assessment.
- Emerging evidence suggests GPT performance may also reflect cognitive abilities, including attention and executive functioning.
Purpose of the Study:
- To investigate rule violations during the GPT as a quantifiable measure of executive functioning.
- Specifically, to assess inhibitory control through analyzing rule-breaking behaviors.
Main Methods:
- Studied 82 veterans undergoing neuropsychological evaluation.
- Recorded rule violations: incorrect hand use and out-of-sequence peg placement.
- Correlated violations with criterion measures: Trail Making Test, Tower of London, Stroop Test.
Main Results:
- Total rule violations showed moderate to strong correlations with criterion measures of executive functioning.
- Individuals with ≥2 rule violations had a higher likelihood (60%) of impairment on criterion measures compared to those with no violations (17%).
Conclusions:
- Rule violations on the GPT offer valuable supplementary data for assessing executive dysfunction.
- These errors provide insights into inhibitory control deficits without increasing test demands.
- Two or more GPT rule violations warrant further investigation for executive dysfunction.
Related Concept Videos
02:45Functional Groups
88.4K
Functional groups are a group of atoms with characteristic properties, which when linked to the carbon skeleton of a molecule, alter the properties of that molecule. For example, the presence of certain functional groups on a molecule will make them hydrophilic, whereas others will make them hydrophobic. These functional groups are an indispensable part of organic chemistry and important components of biological molecules, such as carbohydrates, proteins, lipids, and nucleic acids. Each...
88.4K
02:45Functional Groups
24.4K
24.4K
01:11Functionalism
2.6K
William James, John Dewey, and Charles Sanders Peirce were instrumental in founding functional psychology, which draws heavily from Darwin's theory of evolution by natural selection. This theory suggests that individual traits, including behaviors, are adapted to their environments through natural selection. At the heart of functionalism is the concept of adaptation, meaning that a trait enhances an individual's chances of survival and reproduction.
James envisioned psychology's...
James envisioned psychology's...
2.6K
03:09Measuring Reaction Rates
29.0K
Polarimetry finds application in chemical kinetics to measure the concentration and reaction kinetics of optically active substances during a chemical reaction. Optically active substances have the capability of rotating the plane of polarization of linearly polarized light passing through them—a feature called optical rotation. Optical activity is attributed to the molecular structure of substances. Normal monochromatic light is unpolarized and possesses oscillations of the electrical...
29.0K
01:58Mechanical Protein Functions
5.6K
Proteins perform many mechanical functions in a cell. These proteins can be classified into two general categories- proteins that generate mechanical forces and proteins that are subjected to mechanical forces. Proteins providing mechanical support to the structure of the cell, such as keratin, are subjected to mechanical force, whereas proteins involved in cell movement and transport of molecules across cell membranes, such as an ion pump, are examples of generating mechanical force.
5.6K
01:56Structural Protein Function
29.9K
Structural proteins are a category of proteins responsible for functions ranging from cell shape and movement to providing support to major structures such as bones, cartilage, hair, and muscles. This group includes proteins such as collagen, actin, myosin, and keratin.
Collagen, the most abundant protein in mammals, is found throughout the body. In connective tissue, such as skin, ligaments, and tendons, it provides tensile strength and elasticity. In bones and teeth, it mineralizes to...
Collagen, the most abundant protein in mammals, is found throughout the body. In connective tissue, such as skin, ligaments, and tendons, it provides tensile strength and elasticity. In bones and teeth, it mineralizes to...
29.9K