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Related Concept Videos

Auditory Perception01:17

Auditory Perception

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The auditory system is essential for sound perception, utilizing various critical structures. When sound waves enter the outer ear, they travel through the ear canal and cause the eardrum to vibrate. These vibrations are then transmitted to the middle ear, where three tiny bones – the malleus, incus, and stapes – amplify the sound. This amplification is crucial, as it ensures that the sound vibrations are strong enough to be conveyed to the inner ear. These vibrations then reach the...
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Factors Affecting Perception01:25

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Perception is influenced by perceptual set, context, motivation, and emotion. Perceptual set, or perceptual expectancy, refers to the tendency to perceive things in a particular way, influenced by previous experiences and expectations. This phenomenon affects the interpretation of stimuli, creating a set of mental tendencies and assumptions that impact sensory perceptions of sound, taste, touch, and sight.
An illustrative example of a perceptual set is the scenario where an airline pilot told...
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Reconsidering commonly used stimuli in speech perception experiments.

Matthew B Winn1, Richard A Wright2

  • 1Department of Speech-Language-Hearing Sciences, University of Minnesota, Minneapolis, Minnesota 55455, USA.

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Summary
This summary is machine-generated.

Common speech perception stimuli, like Hillenbrand vowels and /ɑ/ contexts, may not be ideal for experiments. Researchers should reconsider their use to avoid misinterpreting speech perception results.

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Area of Science:

  • Phonetics
  • Speech Science
  • Auditory Neuroscience

Background:

  • Commonly used stimuli in speech perception research require critical evaluation.
  • Previous interpretations of speech perception data may be influenced by stimulus choice.

Purpose of the Study:

  • To question the universal applicability and interpretation of widely used speech perception stimuli.
  • To highlight limitations and potential confounds associated with specific experimental paradigms.

Main Methods:

  • Critical analysis of established speech stimuli (e.g., Hillenbrand vowels, /ɑ/ context, digit tests, matrix sentences).
  • Examination of spectral dynamics in English vowels.
  • Assessment of stimulus suitability for consonant perception and voice-onset-time perception.

Main Results:

  • Hillenbrand vowels are dialect-specific, not a universal standard; English vowels possess underappreciated spectral dynamics.
  • /ɑ/ context is common but problematic for consonant and voice-onset-time perception due to formant transition confounds.
  • The /dɑ/ stimulus is overrepresented and insufficient for generalizing speech perception.
  • Digit tests and matrix sentences (e.g., Coordinate Response Measure) lack sensitivity to crucial speech perception patterns.

Conclusions:

  • Re-evaluation of commonly used speech perception stimuli is necessary.
  • Careful consideration of stimulus properties is crucial to avoid misinterpretation of experimental results.
  • Stimulus selection significantly impacts the validity and generalizability of speech perception findings.