Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Variability: Analysis01:11

Variability: Analysis

373
Measures of variability are statistical metrics that reveal the dispersion pattern within a dataset. They are pivotal in biostatistics, providing insights into the heterogeneity within health and biological data. Variability signifies the degree to which data points diverge from one another, helping researchers understand the potential range of values and associated uncertainty within the data.
The range is a simple measure of variability, indicating the difference between the highest and...
373
Larynx01:21

Larynx

3.7K
The human larynx, often referred to as the voice box, is an intricate organ located in the neck. It serves as a pathway for air to enter the lungs during respiration and is an essential component of voice production.
Anatomy of the Larynx
The larynx consists of various components, including cartilage, muscles, and vocal cords. Its structure includes three large unpaired cartilages—the thyroid, cricoid, and epiglottis—and three smaller paired cartilages—the arytenoids,...
3.7K
Components of Language01:24

Components of Language

665
Language, whether spoken, signed, or written, consists of specific components: lexicon and grammar. The lexicon is the vocabulary of a language, comprising its words. Grammar is the set of rules used to convey meaning through the lexicon. For example, English grammar adds “-ed” to most verbs to indicate past tense. Words are formed by combining phonemes, which are the basic sound units of a language. Different languages have different sets of phonemes (e.g., “ah” vs.
665
Lateralization01:28

Lateralization

863
Brain lateralization refers to the division of mental processes and functions between the two hemispheres of the brain, a phenomenon that optimizes neural efficiency and underpins complex abilities in humans. This specialization allows each hemisphere to perform tasks where it has a comparative advantage, facilitating more refined cognitive capabilities across different domains.
863
Language Development01:22

Language Development

726
Children master language quickly and with relative ease, supported by both biological predisposition and reinforcement. B. F. Skinner (1957) proposed that language is learned through reinforcement, while Noam Chomsky (1965) argued that language acquisition mechanisms are biologically determined.
The critical period for language acquisition suggests that the ability to acquire language is at its peak early in life. As people age, this proficiency decreases. Language development begins very...
726
Testing a Claim about Mean: Unknown Population SD01:21

Testing a Claim about Mean: Unknown Population SD

5.3K
A complete procedure of testing a hypothesis about a population mean when the population standard deviation is unknown is explained here.
Estimating a population mean requires the samples to be approximately normally distributed. The data should be collected from the randomly selected samples having no sampling bias. There is no specific requirement for sample size. But if the sample size is less than 30, and we don't know the population standard deviation, a different approach is used;...
5.3K

You might also read

Related Articles

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

Sort by
Same author

Frequency-dependent modulation of foveal contrast sensitivity by fine-scale exogenously triggered attention.

eLife·2026
Same author

Compensation in audiovisual speech perception: Discounting the pen in the mouth.

Journal of experimental psychology. Learning, memory, and cognition·2025
Same author

Frequency-selective contrast sensitivity modulation driven by fine-tuned exogenous attention at the foveal scale.

bioRxiv : the preprint server for biology·2025
Same author

Learning to understand an unfamiliar talker: Testing distributional learning as a model of rapid adaptive speech perception.

Cognition·2025
Same author

Comparing accounts of formant normalization against US English listeners' vowel perception.

The Journal of the Acoustical Society of America·2025
Same author

Changes in informativity of sentential context affects its integration with subcategorical information about preceding speech.

Journal of experimental psychology. Learning, memory, and cognition·2025

Related Experiment Video

Updated: Dec 20, 2025

Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody
09:09

Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody

Published on: September 27, 2024

730

Comparing non-native and native speech: Are L2 productions more variable?

Xin Xie1, T Florian Jaeger1

  • 1Department of Brain and Cognitive Sciences, University of Rochester, Rochester, New York 14627, USA.

The Journal of the Acoustical Society of America
|June 4, 2020
PubMed
Summary
This summary is machine-generated.

Proficient non-native English speakers show similar speech variability to native speakers. Deviations in speech patterns are specific to certain sounds and cues, not general variability.

More Related Videos

Author Spotlight: Investigating the Impact of Emotional Prosodies on Voice Recognition and Perception
05:48

Author Spotlight: Investigating the Impact of Emotional Prosodies on Voice Recognition and Perception

Published on: August 9, 2024

1.9K
Author Spotlight: Deciphering the Cognitive and Neural Mechanisms of Gesture in Communication
07:18

Author Spotlight: Deciphering the Cognitive and Neural Mechanisms of Gesture in Communication

Published on: January 26, 2024

1.2K

Related Experiment Videos

Last Updated: Dec 20, 2025

Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody
09:09

Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody

Published on: September 27, 2024

730
Author Spotlight: Investigating the Impact of Emotional Prosodies on Voice Recognition and Perception
05:48

Author Spotlight: Investigating the Impact of Emotional Prosodies on Voice Recognition and Perception

Published on: August 9, 2024

1.9K
Author Spotlight: Deciphering the Cognitive and Neural Mechanisms of Gesture in Communication
07:18

Author Spotlight: Deciphering the Cognitive and Neural Mechanisms of Gesture in Communication

Published on: January 26, 2024

1.2K

Area of Science:

  • Phonetics and Second Language Acquisition
  • Speech Perception and Production

Background:

  • Foreign-accented speech presents comprehension challenges for native listeners.
  • Increased within-category variability in non-native speech is a hypothesized cause of this difficulty.
  • Previous research lacked direct tests of this hypothesis.

Purpose of the Study:

  • To investigate whether proficient non-native English speakers exhibit increased speech category variability compared to native speakers.
  • To examine deviations in central tendencies and cue correlations in non-native speech.
  • To challenge the assumption that L1/L2 competition inherently increases non-native speech variability.

Main Methods:

  • Compared vowel and word-final stop realizations in native English (L1) and native Mandarin (L2) speakers of English.
  • Utilized the largest sample size to date for this type of analysis.
  • Controlled for the effects of phonetic context on speech production.

Main Results:

  • Proficient non-native speakers showed minimal to no difference in category variability compared to native speakers.
  • Significant deviations were observed in the central tendencies (means) of speech categories for non-native speakers.
  • Non-native speakers displayed altered correlations among phonetic cues compared to native speakers.

Conclusions:

  • The hypothesis that non-native speech necessarily has higher variability is challenged.
  • Deviations in non-native speech are not uniformly distributed but are category- and cue-specific.
  • Proficiency in a second language does not automatically equate to increased speech variability.