Discovering functional units in continuous speech.
نویسندگان
چکیده
Language learning requires that listeners discover acoustically variable functional units like phonetic categories and words from an unfamiliar, continuous acoustic stream. Although many category learning studies have examined how listeners learn to generalize across the acoustic variability inherent in the signals that convey the functional units of language, these studies have tended to focus upon category learning across isolated sound exemplars. However, continuous input presents many additional learning challenges that may impact category learning. Listeners may not know the timescale of the functional unit, its relative position in the continuous input, or its relationship to other evolving input regularities. Moving laboratory-based studies of isolated category exemplars toward more natural input is important to modeling language learning, but very little is known about how listeners discover categories embedded in continuous sound. In 3 experiments, adult participants heard acoustically variable sound category instances embedded in acoustically variable and unfamiliar sound streams within a video game task. This task was inherently rich in multisensory regularities with the to-be-learned categories and likely to engage procedural learning without requiring explicit categorization, segmentation, or even attention to the sounds. After 100 min of game play, participants categorized familiar sound streams in which target words were embedded and generalized this learning to novel streams as well as isolated instances of the target words. The findings demonstrate that even without a priori knowledge, listeners can discover input regularities that have the best predictive control over the environment for both non-native speech and nonspeech signals, emphasizing the generality of the learning.
منابع مشابه
Journal of Experimental Psychology: Human Perception and Performance Discovering Functional Units in Continuous Speech
متن کامل
Learning Word-Like Units from Joint Audio-Visual Analysis
Given a collection of images and spoken audio captions, we present a method for discovering word-like acoustic units in the continuous speech signal and grounding them to semantically relevant image regions. For example, our model is able to detect spoken instances of the words “lighthouse” within an utterance and associate them with image regions containing lighthouses. We do not use any form ...
متن کاملA functional based phonetic units definition for statistical speech recognizers
A functional approach to the description of speech in terms of phonemic units is exposed. It is based on a structural analysis of phonetically transcribed and syllabified texts, which tak:es into account the word stress and the syllabic structure of the language. As a consequence, the defined units utilize syllabic microprosodic cues and are present in a limited number of contexts. The method i...
متن کاملThe secret is in the sound: from unsegmented speech to lexical categories.
When learning language, young children are faced with many seemingly formidable challenges, including discovering words embedded in a continuous stream of sounds and determining what role these words play in syntactic constructions. We suggest that knowledge of phoneme distributions may play a crucial part in helping children segment words and determine their lexical category, and we propose an...
متن کاملUsing Phoneme Distributions to Discover Words and Lexical Categories in Unsegmented Speech
When learning language young children are faced with many formidable challenges, including discovering words embedded in a continuous stream of sounds and determining what role these words play in syntactic constructions. We suggest that knowledge of phoneme distributions may play a crucial part in helping children segment words and determining their lexical category. We performed a two-step an...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Journal of experimental psychology. Human perception and performance
دوره 41 4 شماره
صفحات -
تاریخ انتشار 2015