Related Experiment Video
Updated: Jun 14, 2026
05:38
Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology
Published on: June 29, 2021
An intonational cue to word segmentation in phonemically identical sequences
Elsa Spinelli1, Nicolas Grimault, Fanny Meunier
1CNRS and Université Pierre Mendès France, Grenoble, France. elsa.spinelli@upmf-grenoble.fr
Attention, Perception & Psychophysics
|March 30, 2010
Summary
French listeners use intonation to segment words. Raising the fundamental frequency (f0) of a word beginning with a consonant helped listeners identify it as starting with a vowel, aiding word segmentation.
Area of Science:
- Psycholinguistics
- Phonetics
- Speech Perception
Background:
- Word segmentation is crucial for language comprehension.
- Intonational cues, like fundamental frequency (f0), play a role in speech processing.
- French exhibits phonemically identical sequences that differ in initial sound (vowel vs. consonant).
Purpose of the Study:
- To investigate how language-specific intonational cues are used for word segmentation in French.
- To determine the effect of fundamental frequency (f0) modifications on perceiving vowel-initial versus consonant-initial words.
- To explore the online activation of lexical targets based on intonational information.
Main Methods:
- Participants performed a two-alternative forced choice task on phonemically identical French sequences (/selafi/).
- The fundamental frequency (f0) of the initial vowel in consonant-initial words was manipulated (equal, higher, lower) compared to vowel-initial words.
- Visual lexical decision tasks were used to assess online activation of word targets.
Main Results:
- Increasing the f0 of the initial vowel in consonant-initial words led to more vowel-initial responses.
- Lexical decision to vowel-initial targets was facilitated only when the f0 was matched to the natural vowel-initial form.
- These findings suggest that intonation guides segmentation towards content word beginnings.
Conclusions:
- The human speech recognition system utilizes intonational information, specifically f0 contours, to resolve word segmentation ambiguities.
- Listeners dynamically adjust word boundary perception based on acoustic-prosodic cues.
- This research highlights the integration of phonetic and lexical information during real-time language processing.
Related Concept Videos
01:10Tip-of-the-Tongue Phenomenon
The tip-of-the-tongue (TOT) phenomenon is a cognitive experience characterized by a temporary inability to retrieve specific information from memory despite having a strong feeling of knowing the information. Although individuals cannot access the target word or detail, they frequently recall related elements, such as its initial letter, syllable count, or context. This partial retrieval often causes frustration, as one might recognize a familiar face or know that a name starts with a specific...
01:10Interference: Path Lengths
Consider two sources of sound, that may or may not be in phase, emitting waves at a single frequency, and consider the frequencies to be the same.
Two special sources may be considered when they are in phase. This can be easily achieved by feeding the two sources from the same source. An example would be synchronizing the two speakers by feeding them with the same source, such as the sound waves produced by a tuning fork. This setup ensures that the two sources have the same frequency and are...
Two special sources may be considered when they are in phase. This can be easily achieved by feeding the two sources from the same source. An example would be synchronizing the two speakers by feeding them with the same source, such as the sound waves produced by a tuning fork. This setup ensures that the two sources have the same frequency and are...
01:09¹H NMR: Pople Notation
The Pople nomenclature system classifies spin systems based on the difference between their chemical shifts. Coupled spins are denoted by capital letters with subscripts indicating the number of equivalent nuclei. When the coupled nuclei have well-separated chemical shifts, they are assigned letters that are far apart in the alphabet, such as A and X. When the difference in chemical shifts is small, coupled nuclei are named using adjacent letters of the alphabet (AB, MN, or XY).
A proton...
A proton...
01:10Interpreting ¹H NMR Signal Splitting: The (n + 1) Rule
In the AX proton spin system, proton A can sense the two spin states of a coupled proton X, resulting in a doublet NMR signal with two peaks of equal (1:1) intensity. When proton A is coupled to two equivalent protons (AX2 spin system), the spin states of each X can be aligned with or against the external field, creating three possible scenarios. This results in a 1:2:1 triplet signal, where the central peak corresponds to the chemical shift of A and is twice as large or intense as the others.
01:22Chunking and Rehearsal in Sensory Memory
Improving short-term memory can be achieved through techniques like chunking and rehearsal. Chunking involves organizing information into larger, more manageable units. This technique is particularly useful for information that exceeds the typical memory span of between five and nine items. For instance, logging into an online account with a password like "ta89vq0179gz" involves grouping letters and numbers into three chunks—ta89, vq01, and 79gz. It makes large amounts of information more...
01:01Perception of Sound Waves
The human ear is not equally sensitive to all frequencies in the audible range. It may perceive sound waves with the same pressure but different frequencies as having different loudness. Moreover, the perception of sound waves depends on the health of an individual's ears, which decays with age. The health of one's ears may also be affected by regular exposure to loud noises.
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same frequency...
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same frequency...