Children's theories of word meaning: The role of shape similarity in early acquisition

1994 ◽  
Vol 9 (1) ◽  
pp. 45-75 ◽  
Author(s):  
Mutsumi Imai ◽  
Dedre Gentner ◽  
Nobuko Uchida
Keyword(s):  
Word Meaning ◽  
Shape Similarity ◽  
Early Acquisition

scholarly journals Hippocampal Interneurons are Required for Trace Eyeblink Conditioning in Mice

2021 ◽  
Author(s):  
Wei-Wei Zhang ◽  
Rong-Rong Li ◽  
Jie Zhang ◽  
Jie Yan ◽  
Qian-Hui Zhang ◽  
...  
Keyword(s):  
Eyeblink Conditioning ◽  
Pyramidal Cells ◽  
Conditioned Eyeblink ◽  
Cellular Mechanisms ◽  
Sustained Activity ◽  
Early Acquisition ◽  
Freely Moving ◽  
Trace Eyeblink Conditioning

AbstractWhile the hippocampus has been implicated in supporting the association among time-separated events, the underlying cellular mechanisms have not been fully clarified. Here, we combined in vivo multi-channel recording and optogenetics to investigate the activity of hippocampal interneurons in freely-moving mice performing a trace eyeblink conditioning (tEBC) task. We found that the hippocampal interneurons exhibited conditioned stimulus (CS)-evoked sustained activity, which predicted the performance of conditioned eyeblink responses (CRs) in the early acquisition of the tEBC. Consistent with this, greater proportions of hippocampal pyramidal cells showed CS-evoked decreased activity in the early acquisition of the tEBC. Moreover, optogenetic suppression of the sustained activity in hippocampal interneurons severely impaired acquisition of the tEBC. In contrast, suppression of the sustained activity of hippocampal interneurons had no effect on the performance of well-learned CRs. Our findings highlight the role of hippocampal interneurons in the tEBC, and point to a potential cellular mechanism subserving associative learning.

Separatism: a cross-linguistic corpus-assisted study of word-meaning development in a time of conflict

Corpora ◽  
2021 ◽  
Vol 16 (3) ◽  
pp. 379-416
Author(s):  
Tatyana Karpenko-Seccombe
Keyword(s):  
Discourse Analysis ◽  
Qualitative Analysis ◽  
Historical Context ◽  
Word Meaning ◽  
Political Context ◽  
The Political ◽  
Word Usage ◽  
Parliamentary Debates ◽  
Dominant Ideologies

This paper considers the role of historical context in initiating shifts in word meaning. The study focusses on two words – the translation equivalents separatist and separatism – in the discourses of Russian and Ukrainian parliamentary debates before and during the Russian–Ukrainian conflict which emerged at the beginning of 2014. The paper employs a cross-linguistic corpus-assisted discourse analysis to investigate the way wider socio-political context affects word usage and meaning. To allow a comparison of discourses around separatism between two parliaments, four corpora were compiled covering the debates in both parliaments before and during the conflict. Keywords, collocations and n-grams were studied and compared, and this was followed by qualitative analysis of concordance lines, co-text and the larger context in which these words occurred. The results show how originally close meanings of translation equivalents began to diverge and manifest noticeable changes in their connotative, affective and, to an extent, denotative meanings at a time of conflict in line with the dominant ideologies of the parliaments as well as the political affiliations of individuals.

Using Speakers' Referential Intentions to Model Early Cross-Situational Word Learning

2009 ◽  
Vol 20 (5) ◽  
pp. 578-585 ◽  
Author(s):  
Michael C. Frank ◽  
Noah D. Goodman ◽  
Joshua B. Tenenbaum
Keyword(s):  
Computational Model ◽  
Word Learning ◽  
Word Meaning ◽  
Mutual Exclusivity ◽  
Object Individuation ◽  
Word Meanings ◽  
Inference Problems ◽  
Corpus Data ◽  
Situational Learning

Word learning is a “chicken and egg” problem. If a child could understand speakers' utterances, it would be easy to learn the meanings of individual words, and once a child knows what many words mean, it is easy to infer speakers' intended meanings. To the beginning learner, however, both individual word meanings and speakers' intentions are unknown. We describe a computational model of word learning that solves these two inference problems in parallel, rather than relying exclusively on either the inferred meanings of utterances or cross-situational word-meaning associations. We tested our model using annotated corpus data and found that it inferred pairings between words and object concepts with higher precision than comparison models. Moreover, as the result of making probabilistic inferences about speakers' intentions, our model explains a variety of behavioral phenomena described in the word-learning literature. These phenomena include mutual exclusivity, one-trial learning, cross-situational learning, the role of words in object individuation, and the use of inferred intentions to disambiguate reference.

The early acquisition of word meaning

1976 ◽  
Vol 3 (1) ◽  
pp. 117-123 ◽  
Author(s):  
Peter A. Reich
Keyword(s):  
Early Development ◽  
Learning Process ◽  
Word Meaning ◽  
Word Meanings ◽  
Early Acquisition ◽  
Special Case

ABSTRACTThe development of the meaning of shoe in one pre-lingual child, plus additional examples drawn from the literature, support a notion that word meanings start out very narrow and only become overextended later, though sometimes before the word is spoken. This appears to contradict the course of development of meaning hypothesized by Clark (1973). It is argued that the early development of word meaning is simply a special case of a much more general learning process.

scholarly journals Interwoven functionality of the brain’s action and language systems

2010 ◽  
Vol 5 (2) ◽  
pp. 231-254 ◽  
Author(s):  
Véronique Boulenger ◽  
Tatjana A. Nazir
Keyword(s):  
Word Meaning ◽  
Masked Priming ◽  
Action Perception ◽  
Semantic Retrieval ◽  
Motor Action ◽  
Electrophysiological Studies ◽  
Neuroimaging Study ◽  
Action Verbs ◽  
The Brain

Theories of embodied cognition consider language understanding as intimately linked to sensory and motor processes. Here we review evidence from kinematic and electrophysiological studies for the idea that processing of words referring to bodily actions, even when subliminally presented, recruits the same motor regions that are involved in motor control. We further discuss the functional role of the motor system in action word retrieval in light of neuropsychological data showing modulation of masked priming effects for action verbs in Parkinson’s patients as a function of dopaminergic treatment. Finally, a neuroimaging study revealing semantic somatotopy in the motor cortex during reading of idioms that include action words is presented. Altogether these findings provide strong arguments that semantic mechanisms are grounded in action-perception systems of the brain. They support the existence of common brain signatures to action words, even when embedded in idiomatic sentences, and motor action. They further suggest that motor schemata reflecting word meaning contribute to lexico-semantic retrieval of action words.

On the role of morphological richness in the early development of noun and verb inflection

2011 ◽  
Vol 31 (4) ◽  
pp. 461-479 ◽  
Author(s):  
Aris Xanthos ◽  
Sabine Laaha ◽  
Steven Gillis ◽  
Ursula Stephany ◽  
Ayhan Aksu-Koç ◽  
...  
Keyword(s):  
Early Development ◽  
Spontaneous Speech ◽  
Morphological Development ◽  
Verb Inflection ◽  
Speech Corpora ◽  
Mean Size ◽  
Early Acquisition ◽  
Child Speech ◽  
The Relationship

This study proposes a new methodology for determining the relationship between child-directed speech and child speech in early acquisition. It illustrates the use of this methodology in investigating the relationship between the morphological richness of child-directed speech and the speed of morphological development in child speech. Both variables are defined in terms of mean size of paradigm (MSP) and estimated in a set of longitudinal spontaneous speech corpora of nine children and their caretakers. The children are aged 1;3–3;0, acquiring nine different languages that vary in terms of morphological richness. The main result is that the degree of morphological richness in child-directed speech is positively related to the speed of development of noun and verb paradigms in child speech.

scholarly journals The role of shape similarity in toddlers’ lexical extensions

1999 ◽  
Vol 17 (1) ◽  
pp. 21-36 ◽  
Author(s):  
Diane Poulin-Dubois ◽  
Ilana Frank ◽  
Susan A. Graham ◽  
Abbie Elkin
Keyword(s):  
Shape Similarity
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