Podcast
Questions and Answers
In the UK, how many children are born deaf?
In the UK, how many children are born deaf?
1-2 out of every 1000 children
What are some common causes of hearing loss in children? (Select all that apply)
What are some common causes of hearing loss in children? (Select all that apply)
What is the treatment for mild to moderate hearing loss?
What is the treatment for mild to moderate hearing loss?
Hearing aids
What is the treatment for severe to profound hearing loss?
What is the treatment for severe to profound hearing loss?
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What do cochlear implants do?
What do cochlear implants do?
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What are four predictors of language outcome in children with hearing loss? (Select all that apply)
What are four predictors of language outcome in children with hearing loss? (Select all that apply)
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In the Ingvalson et al. study, what was observed regarding vocabulary size in children with hearing loss?
In the Ingvalson et al. study, what was observed regarding vocabulary size in children with hearing loss?
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By 7.5 months of age, what can infants do in terms of discriminating between lexical stresses?
By 7.5 months of age, what can infants do in terms of discriminating between lexical stresses?
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What is the Visual Habituation Paradigm?
What is the Visual Habituation Paradigm?
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What was the sample used in the Segal, Houston, Kishon-Rabin study?
What was the sample used in the Segal, Houston, Kishon-Rabin study?
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What was assessed in the Segal, Houston, Kishon-Rabin study? (Select all that apply)
What was assessed in the Segal, Houston, Kishon-Rabin study? (Select all that apply)
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What did the findings of the Segal, Houston, Kishon-Rabin study show?
What did the findings of the Segal, Houston, Kishon-Rabin study show?
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What is meant by audiovisual association?
What is meant by audiovisual association?
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What is the McGurk effect?
What is the McGurk effect?
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What is meant by multi-modal perception?
What is meant by multi-modal perception?
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What was the sample like in the Schorr et al. study?
What was the sample like in the Schorr et al. study?
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What happened in the Schorr et al. study?
What happened in the Schorr et al. study?
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What were the findings of the Schorr et al. study?
What were the findings of the Schorr et al. study?
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What is the preferential looking paradigm?
What is the preferential looking paradigm?
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What happens in the preferential looking paradigm procedure?
What happens in the preferential looking paradigm procedure?
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What happened in Houston et al.'s study?
What happened in Houston et al.'s study?
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What were the findings of the Houston et al. study?
What were the findings of the Houston et al. study?
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What is shape bias?
What is shape bias?
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At what age do children have shape bias?
At what age do children have shape bias?
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What were the results of the Perry et al. study?
What were the results of the Perry et al. study?
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Study Notes
Word Learning in Children with Hearing Loss
- Prevalence of Deafness in UK: Approximately 1-2 out of every 1000 children are born deaf.
Causes of Hearing Loss in Children
- Infections
- Premature birth
- Low birth weight
- Birth injuries
- Maternal drug/alcohol use
- Maternal diabetes
- Maternal high blood pressure
- Genetics
Treatment Options
- Mild to Moderate Hearing Loss: Hearing aids
- Severe to Profound Hearing Loss: Cochlear implants
Cochlear Implants
- Cochlear implants stimulate auditory nerves electrically, creating a sensation of sound.
- Cochlear implants do not restore complete hearing.
Predictors of Language Outcome
- Audiological factors
- Demographic factors
- Environmental factors
- Language input
Ingvalson et al. Study (Vocabulary Size)
- Participants: 31 children with normal hearing, 31 with hearing loss (age-matched)
- Methods: Peabody Picture Vocabulary Test, receptive one-word picture vocabulary test administered at ages 3-4 and again 6 months later.
- Findings: Children with normal hearing had larger vocabularies compared to those with hearing loss.
Infants' Word Segmentation (by 7.5 months)
- Infants can segment words based on stress patterns in their native language, as demonstrated in experiments with the words askindom and hamlet.
Visual Habituation Paradigm
- A method to measure infants' ability to discriminate between stimuli, by measuring their looking time.
Segal, Houston, Kishon-Rabin Study (Infants with Cochlear Implants)
- Participants: 20 children with cochlear implants (22-33 months old, 1-6 months CI use), 48 infants with normal hearing
- Methods: Observed habituation to visual stimuli and look-away rates during habituation.
- Findings: Deaf infants habituated more slowly and had lower look-away rates compared to infants with typical hearing.
McGurk Effect
- An auditory-visual interaction in speech perception, where visual input can conflict with the perceived sound.
Multimodal Perception
- The combination of senses to create a comprehensive perception of the world.
Schorr et al. Study (McGurk Effect and Cochlear Implants)
- Participants: Children with profound hearing loss (ages 5-14), minimum 1 year CI usage, age-matched controls
- Methods: Presented audiovisual stimuli ("pa" / "ka"); participants stated the perceived syllable.
- Findings: Normal-hearing children reliably perceived congruent and incongruent stimuli. Children with hearing loss sometimes reported a perception incongruent with the audio signal.
Preferential Looking Paradigm (Word Learning)
- A method to assess infant attention and perceptual abilities, typically involving visual stimuli.
Houston et al. Study (Word Learning in Deaf Children with Cochlear Implants)
- Participants: 25 prelingually deaf children with cochlear implants (21-40 months old), age-matched controls.
- Methods: Intermodal preferential looking paradigm to assess word learning.
- Findings: Normal-hearing children showed a gradual increase in mapping abilities until around 21 months. Children with earlier CI implantation performed similarly to normal-hearing children.
Shape Bias in Infants
- A cognitive bias for associating words with objects of a particular shape.
Perry et al. Study (Shape Bias in Children with Hearing Loss)
- Participants: 20 children with hearing loss using cochlear implants/hearing aids and age-matched/vocabulary-matched controls.
- Methods: Tested shape generalization when generating novel words.
- Findings: Children with hearing loss were less likely to generalize novel names to objects of the same shape as their age or vocab equivalents.
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Description
Explore the complexities of word learning in children with hearing loss, focusing on various causes and treatment options. This quiz delves into the prevalence of deafness, the role of cochlear implants, and factors predicting language outcomes based on recent studies.