Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Naming Enantiomers

Naming Enantiomers

The naming of enantiomers employs the Cahn–Ingold–Prelog rules that involve assigning priorities to different substituent groups at a chiral center. Each enantiomer, being a distinct molecule, is assigned a unique name by the Cahn–Ingold–Prelog (CIP) rules, also called the R–S system. The prefix R- or S- attached to the chiral centers in an enantiomer is dependent on the spatial arrangement of the four substituents on the chiral center. The R–S system essentially comprises three...

Naming Skeletal Muscles

Naming Skeletal Muscles

The naming of the approximately 700 muscles in the human body is based on a set of criteria designed to provide descriptive information about each muscle, making it easier to identify and remember them.
The key factors used in naming muscles include:

Common Names of Aldehydes and Ketones

Common Names of Aldehydes and Ketones

Some common aldehydes and ketones are popularly known by their common names used historically and predate the IUPAC nomenclature.
Common names of aldehydes are derived from the names of their corresponding acid. For instance, the two-carbon aldehyde–acetaldehyde derives its name from the corresponding acid–acetic acid. Similarly, formaldehyde derives its name from formic acid and benzaldehyde from benzoic acid.
Aliphatic ketones are named by suffixing the word “ketone” to the...

Predicting Molecular Geometry

Predicting Molecular Geometry

VSEPR Theory for Determination of Electron Pair Geometries

Multimodal Protocol for Assessing Metacognition and Self-Regulation in Adults with Learning Difficulties

Multimodal Protocol for Assessing Metacognition and Self-Regulation in Adults with Learning Difficulties

The current work proposes a multimodal evaluation protocol focused on metacognitive, self-regulation of learning, and emotional processes, which make up the basis of the difficulties in adults with...

A Real-Time Interactive System for Studying Confrontational Pursuit Behavior in Rodents

A Real-Time Interactive System for Studying Confrontational Pursuit Behavior in Rodents

Here, we present a protocol to detect and quantify predatory pursuit behavior in a mouse model. This platform provides a new research paradigm for studying the dynamics and neural mechanisms of predatory pursuit behavior in mice and will provide a standardized platform for studying pursuit behavior.

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Adaptive balancing of effort, accuracy and response speed in anomia treatment for post-stroke aphasia in community-based settings in the USA: a within-subjects randomised controlled trial protocol.

BMJ open·2026

Same author

Inside Semantic Feature Analysis: A Within-Trial Analysis of Feature Quantity and Quality.

American journal of speech-language pathology·2026

Same author

Comment on Panuccio et al. Quality of Assessment Tools for Aphasia: A Systematic Review. <i>Brain Sci.</i> 2025, <i>15</i>, 271.

Brain sciences·2025

Same author

Test-retest reliability of edge-level resting-state functional connectivity in people with aphasia.

Neuroimage. Reports·2025

Same author

Validity and Reliability of the Transactional EXchanges in Texting for Aphasia Rating Scale.

Journal of speech, language, and hearing research : JSLHR·2025

Same author

Cognitive Functions Supporting Learning Over Time in Naming Treatment for Aphasia.

Journal of speech, language, and hearing research : JSLHR·2025

Same journal

Influence of lexical and phonological variables on the production of verb tense in agrammatism.

Aphasiology·2026

Same journal

Examining aphasia rehabilitation in Colombia from the perspective of speech-language pathologists and neuropsychologists: a pilot study.

Aphasiology·2026

Same journal

Aphasia severity mediates the relationship between attention and sentence comprehension.

Aphasiology·2026

Same journal

Something old, something borrowed, something new: frameworks to guide cultural adaptations and their documentation in aphasia treatments.

Aphasiology·2026

Same journal

Sources of perceived stress in people with aphasia: a qualitative study.

Aphasiology·2026

Same journal

Evidence for an integrated bilingual language system from discourse tasks in aphasia.

Aphasiology·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Jan 20, 2026

Naming Enantiomers: The R-S System

Naming Enantiomers: The R-S System

Predicting confrontation naming item difficulty.

Gerasimos Fergadiotis¹, Alexander Swiderski², William D Hula³

¹Portland State University, Portland, OR.

|August 30, 2019

Summary

This summary is machine-generated.

Item difficulty for naming tests can be predicted using word length, age of acquisition, lexical frequency, and naming latency. This approach aids in assessing individuals with aphasia without large sample sizes.

Keywords:

aphasia assessment confrontation naming item response theory psychometrics reaction time

More Related Videos

Multimodal Protocol for Assessing Metacognition and Self-Regulation in Adults with Learning Difficulties

Multimodal Protocol for Assessing Metacognition and Self-Regulation in Adults with Learning Difficulties

Published on: September 27, 2020

A Real-Time Interactive System for Studying Confrontational Pursuit Behavior in Rodents

A Real-Time Interactive System for Studying Confrontational Pursuit Behavior in Rodents

Published on: May 16, 2025

Related Experiment Videos

Last Updated: Jan 20, 2026

Naming Enantiomers: The R-S System

Naming Enantiomers: The R-S System

Multimodal Protocol for Assessing Metacognition and Self-Regulation in Adults with Learning Difficulties

Multimodal Protocol for Assessing Metacognition and Self-Regulation in Adults with Learning Difficulties

Published on: September 27, 2020

A Real-Time Interactive System for Studying Confrontational Pursuit Behavior in Rodents

A Real-Time Interactive System for Studying Confrontational Pursuit Behavior in Rodents

Published on: May 16, 2025

Area of Science:

Psycholinguistics
Neuroscience
Speech-Language Pathology

Background:

Item response theory (IRT) is useful for modeling item difficulty but requires large sample sizes, limiting its use in aphasiology.
Previous attempts to predict item difficulty for the Philadelphia Naming Test (PNT) using psycholinguistic variables were hampered by incomplete data.
This study addresses the need for alternative methods to estimate item difficulty in confrontation naming tests.

Purpose of the Study:

To estimate naming latencies for all 175 items on the PNT.
To evaluate the effectiveness of psycholinguistic variables and naming latencies in predicting item difficulty.

Main Methods:

A speeded picture naming task was administered to 44 healthy adults to collect naming latencies for PNT items.
A regression model, previously developed by Swiderski et al. (2016), was re-estimated using the newly collected naming latency data.

Main Results:

The regression model, incorporating word length, age of acquisition, lexical frequency, and naming latency, explained a significant portion of the variance in PNT item difficulty (Adj. R² = .692).

Conclusions:

Psycholinguistic variables and naming latencies effectively predict picture naming item difficulty.
These predictors are easily obtainable and can be used to estimate item difficulty for individuals with aphasia, bypassing the need for large sample data collection.