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Related Concept Videos

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Non-verbal communication extends beyond gestures and facial expressions to include vocal elements known as paralanguage. Paralanguage consists of non-verbal vocal cues such as pitch, loudness, speech rate, pauses, and non-verbal vocalizations like laughter, sighs, and moans. These elements not only accompany speech but also provide critical emotional and contextual information.The Role of Paralanguage in CommunicationParalanguage adds depth to spoken language by conveying emotions and...
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The sign test for matched pairs offers a robust method for comparing two paired samples, often for the effects of an intervention in one of them. This method is very useful in situations where the underlying distribution of the data is unknown. The test compares two related samples—often pre- and post-treatment measurements on the same subjects—to determine if there are significant differences in their median values.
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The moment of inertia is typically associated with principal axes, but it can also be computed for any random axis. When an arbitrary axis is under consideration, the moment of inertia is determined by integrating the mass distribution of the object along that specific axis. It is crucial in applications like the design of machinery, where components rotate about various axes, and balance and stability are essential.
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Non-verbal communication plays a critical role in human interaction, influencing how individuals perceive emotions and psychological states. It operates through four primary channels: facial expressions, eye contact, body language, and touch. These non-verbal cues help convey meaning beyond spoken language and are often culturally influenced.Facial Expressions and Emotional RecognitionFacial expressions are among the most powerful and universal forms of non-verbal communication. Research has...
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The Wilcoxon signed-rank test for matched pairs evaluates the null hypothesis by combining the ranks of differences with their signs. It essentially tests whether the median of the differences in a population of matched pairs is zero. Since the test incorporates more information than the sign test, it generally yields more trustable conclusions. This test also does not require the data to follow a normal distribution, but two conditions must be met for it to be applicable: (1) the data must...
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Related Experiment Video

Updated: Feb 11, 2026

Testing for Metacognitive Responding Using an Odor-based Delayed Match-to-Sample Test in Rats
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Covert verbal mediation in arbitrary matching to sample.

Carl T Sundberg1, Mark L Sundberg1, Jack Michael2

  • 1Behavior Analysis Center for Autism.

Journal of the Experimental Analysis of Behavior
|May 8, 2018
PubMed
Summary
This summary is machine-generated.

College students (high-verbal) relied on verbal mediation for matching-to-sample tasks, unlike adults with intellectual disabilities (low-verbal). Disrupting symbol labeling hindered high-verbal participants, suggesting reliance on verbal strategies.

Keywords:
covert verbal mediationemergent stimulus-stimulus relationsjoint controlmatching to samplemultiple controlverbal behavior

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Area of Science:

  • Cognitive Psychology
  • Behavioral Science
  • Linguistics

Background:

  • Matching-to-sample (MTS) tasks assess stimulus control and learning.
  • Verbal mediation is hypothesized to play a role in complex cognitive tasks.
  • Understanding group differences in cognitive strategies is crucial for educational and therapeutic interventions.

Purpose of the Study:

  • To investigate the role of covert verbal mediation in arbitrary matching-to-sample (MTS) performance.
  • To compare the reliance on verbal mediation between high-verbal and low-verbal groups.
  • To examine how disrupting labeling affects MTS performance in different verbal ability groups.

Main Methods:

  • Arbitrary matching-to-sample (MTS) preparation used with college students (high-verbal) and adults with intellectual disabilities (low-verbal).
  • Established arbitrary relations between nonsense words, visual symbols, objects, and hand signs.
  • Manipulated comparison array configurations (fixed, random, same symbol) to impede labeling in some conditions.

Main Results:

  • Disrupting symbol labeling adversely affected MTS performance in the high-verbal group but not the low-verbal group.
  • High-verbal participants appeared to depend on verbal mediation and joint control for stimulus selection.
  • Low-verbal participants likely relied on unmediated or nonverbal mediation strategies.

Conclusions:

  • Covert verbal mediation significantly aids high-verbal individuals in MTS tasks.
  • Low-verbal individuals may utilize alternative, nonverbal strategies when verbal mediation is not accessible.
  • Emergent relations in high-verbal groups suggest complex stimulus control mechanisms in MTS.