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LENA - En stegmätare för ord: Lyssnings- och talspråksmiljö hos en grupp svenska barn vid 18-24 månaders ålder mätt med Language Environment Analysis
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience.
2015 (Swedish)Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
Abstract [sv]

Små barns språkmiljö har visat sig vara betydelsefull för den fortsatta språkliga utvecklingen och skillnader i barns förmågor befästs tidigt. Barn lär sig språk i samspel med andra och aktuell forskning indikerar att turtagningar spelar en speciellt viktig roll. Inom ramen för forskningsprojektet Ord gör skillnad, undersöktes i denna pilotstudie lyssnings- och talspråksmiljön för tolv svenskspråkiga barn i åldern 18-24 månader. Antal barnyttranden, turtagningar mellan barn och vuxna och vuxenord mättes med hjälp av Language Environment Analysis (LENA)-systemet. Hypotesen var att sambandet mellan antal turtagningar och antal barnyttranden skulle vara starkare än sambandet mellan antal vuxenord och antal barnyttranden. En dagslång inspelning från inspelningsapparaten Digital Language Processor (DLP) från varje testdeltagare analyserades med mjukvaran LENA V3.1.0. Inledningsvis transkriberades ett mindre stickprov av inspelningarna i ett led att validera LENA-systemet för svenskspråkig ljudmiljö. Beräkningar av barnyttranden och vuxenord genomfördes, med 80 % (SD 18 %) respektive 75 % (SD 11 %) samstämmiga resultat mellan testledarna och LENA V3.1.0, vilket för sistnämnda parameter bedöms som mindre reliabelt. De huvudsakliga resultaten i studien bekräftar hypotesen, att sambandet mellan turtagningar och antal barnyttranden är starkare än mellan vuxnas antal ord och antal barnyttranden. Studien indikerar även ett samband mellan antal vuxenord och expressivt ordförråd. Sammanfattningsvis stärker studien tidigare forskningsresultat angående vikten av den tidiga språkinlärningen och visar att LENA-metoden kan vara ett bra verktyg för att mäta språkmiljö även på svenska. Mer forskning krävs för att säkerställa dess validitet.

Abstract [en]

The language environment of toddlers has been found to be of significant importance for the further development of language acquisition. Differences in this capacity appear at an early stage. Children learn language when interacting with other people, and present research indicates that conversational turns in particular plays an important role here. As a part of the research project “Ord gör skillnad” (= ‘words make a difference’), the audio-verbal environment of 12 typically developed 18-24 months old Swedish-speaking children was examined. The quantity of child vocalizations, conversational turns between children and adults, as well as isolated adult words were measured with the Language Environment Analysis (LENA)-system. The hypothesis was that the number of conversational turns rather than the number of adult words would predict the amount of child vocalizations. A one day-long recording from a Digital Language Processor (DLP) from each participant was analyzed by the software LENA V3.1.0. A small sample of the recordings was initially transcribed and analyzed by the researchers as a validation of the LENA-system for the Swedish-speaking environment. Estimates of child vocalizations and adult words were completed, leading to an 80% (SD= 18%) and a 75% (SD= 11%) consistency with the LENA V3.1.0 estimates, which for the latter variable is considered less reliable. The main results of the study indicate, in accordance with the hypothesis, that the correlation between conversational turns and child vocalizations was greater than the correlation between adult words and child vocalizations. The study also indicates a correlation between quantity of adult words and expressive vocabulary. In summary, the study supports previous research findings about the importance of early language development and shows that the LENA method can be a good tool to measure language environment also in Swedish, but that additional research is needed to ensure its validity.

Place, publisher, year, edition, pages
2015. , 50 p.
Series
Examensarbete i logopedi, 115
Keyword [en]
early language acquisition, language environment, conversational turns, Language Environment Analysis (LENA), automatic speech recognition, validation
Keyword [sv]
tidig språkinlärning, talspråksmiljö, turtagningar, Language Environment Analysis, LENA, taligenkänning, validering
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:uu:diva-273679OAI: oai:DiVA.org:uu-273679DiVA: diva2:894911
Subject / course
Speech and Language Pathology
Educational program
Degree of Master of Science in Speech and Language Pathology
Supervisors
Examiners
Available from: 2016-01-18 Created: 2016-01-16 Last updated: 2016-01-18Bibliographically approved

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