Veza između fonološkog i leksičkog razvoja

master's thesis

• Title (english): Relationship between phonological and lexical development
• Author: Andrea Tonia Batinić
• Mentor: Marijan Palmović (mentor)
• Committee member: Marijan Palmović (predsjednik povjerenstva)
• Committee member: Melita Kovačević (član povjerenstva)
• Committee member: Ana Matić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Education and Rehabilitation Sciences; Zagreb
• Defense date and country: 2021-07-01, Croatia
• Scientific / art field, discipline and subdiscipline: SOCIAL SCIENCES; Speech Therapy

Abstract

Cilj ovog preglednog rada je prikazati vezu između fonološkog i leksičkog razvoja. U početnom dijelu rada ukratko su prikazani fonološki i leksički razvoj, a zatim kako se ta dva razvoja isprepleću. Najvećim dijelom njihova se veza opisivala preko fonološke varijable (fonotaktička vjerojatnost) i leksičkih varijabli (čestotnost riječi i gustoća susjedstva). U radu se pokušalo prikazati i kakav utjecaj navedene varijable imaju na prepoznavanje i produkciju riječi te kako utječu na usvajanje riječi.
Prikazom različitih istraživanja utvrđuje se da se ne može odrediti točan smjer veze fonološkog i leksičkog razvoja jer je već od rane dobi prisutan njihov međusobni utjecaj. Djeca od rane dobi pokazuju preferencije za određenim fonološkim uzorcima i brže uče riječi koje sadrže te uzorke. Usvajanje riječi može ojačati fonotaktiku jezika što dovodi do većeg utjecaja fonoloških obilježja na učenje riječi. Isto tako, taj veći utjecaj fonoloških obilježja može dovesti do učinkovitijeg učenja riječi i time do povećanja djetetova receptivnog rječnika.
Što se tiče fonološke i leksičkih varijabli, tokom života je jezična obrada čestih riječi brža i točnija u odnosu na rijetke riječi i prije se usvajaju. Riječi iz rijetkih susjedstva su u prednosti pri obradi jer su riječi iz gustih susjedstva inhibirane. Kada je u pitanju usvajanje riječi, prije će se usvojiti nove riječi iz gustih susjedstva nego nove riječi iz rijetkih susjedstva što ukazuje na to da organizacija postojećih leksičkih reprezentacija utječe na stvaranje i integraciju novih reprezentacija. Tokom života riječi sa čestim glasovnim nizovima imaju prednost nad riječima s rijetkim glasovnim nizovima. Brže su prepoznate i proizvedene i djeca urednog razvoja ih brže usvajaju, a djeca s fonološkim kašnjenjem brže usvajaju riječi s rijetkim glasovnim nizovima.
Kliničke implikacije rada su da leksičke varijable ciljanih riječi mogu utjecati na usvajanje glasova i njihovu generalizaciju u terapiji za djecu s fonološkim kašnjenjem i tako im pomoći u poboljšanju fonološkog sustava. Terapija za ovu djecu treba uključivati česte riječi u jeziku i riječi niske gustoće, a izbjegavati riječi iz gustih susjedstva. S druge strane, djeci s razvojnim jezičnim poremećajem koja pokazuju kašnjenje u leksičkom usvajanju, fonološke varijable mogle bi pomoći u dijagnostici i terapiji jer fonološka obilježja riječi utječu na leksičko usvajanje.

Abstract (english)

Main aim of this masters`s thesis is to present connection between phonological and lexical development. First part briefly adresses phonological and lexical development and after that we focus on various ways the two interwine. For the most part their relationship will be shown through phonological (phonotactic probability) and lexical variables (neighborhood density and word freuqency). Thesis also presents effects these variables have on word perception, word production as well as word acquisition.
Numerous reviews of scientific literature have shown that exact direction of connection between phonological and lexical development can not be determined because their reciprocal influence has been present from early age. Children from early age manifest preferences for certain phonological patterns and consequently have an easier time learning words that follow such patterns. Word acquisition can strenghten language phonotactics which leads to bigger influence of certain phonological characteristics on word learning. Likewise, the afformentioned increase in influence of phonological characteristics leads to more efficient word learning and increase in child`s receptive vocabulary.
Regarding phonological and lexical variables, processing of frequent words is faster and more accurate relative to infrequent words and so they are learned sooner. Words from sparse neighborhoods are in advantage compared to the words from dense neighbborhoods when being processed due to less inhibitio. Novel words from dense neighborhoods will be learned sooner than novel words from sparse neighborhoods which indicates that organization of existing lexical representations affects creation and integration of new representations. Across the lifespan words composed of common sound sequences are recognized and produced more rapidly than words composed of rare sound sequences. Children with typical phonological development tend to learn more rapidly words composed of common sound sequences. On the other hand chidren with delayed phonological develompment will learn more rapidly words composed of rare sound sequences.
This thesis presents several important clinical implications. It emphasises the influence that lexical variables of targeted words have on sounds learning and their generalization in treatment for children with phonological delays. Treatment for this children should include frequent words in language as well as words from sparse neighborhoods and avoide words from dense neighborhoods. On the other hand, children with specific language impairment appear to exhibit delays in lexical acquisition. In such cases phonological variables could help with the diagnosis and treatment due to their effect on lexical acquisition.

• Keywords: fonološki razvoj; leksički razvoj; fonotaktička vjerojatnost; gustoća susjedstva; čestotnost riječi
• Keywords (english): phonological development; lexical development; phonotactic probability; neighborhood density; word frequency
• Language: croatian
• URN:NBN: urn:nbn:hr:158:612186
• Study programme: Title: Graduate study of Speech and Language Pathology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra logopedije (magistar/magistra logopedije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2021-11-17 10:25:11