Christine Ristuccia, M.S. CCC-SLP lisp is very close to the normal position for /l/ and the sound is...
Transcript of Christine Ristuccia, M.S. CCC-SLP lisp is very close to the normal position for /l/ and the sound is...
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Effective Evaluation and Intervention Procedures for Frontal and Lateral Lisp
Disorders™
Christine Ristuccia, M.S. CCC-SLPwww.sayitright.org
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• Participants will know the characteristics of the 4 types of lisp disorders.
• Participants will name the two possible tongue placements for /s/ and /z/.
• Participants will list the 22 variations for /s/ and /z/, initial and final /s/ blends.
• • Participants will know at least one technique to
elicit tongue placement.
Course Objectives
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Presentation Overview
• Targeted for all levels of knowledge.
• Evaluation procedure (s).
• Specific treatment strategies.
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Course Objectives• Know how to evaluate and treat the various
word positions of the sibilant sounds: (s, z)• Know how to use co-articulation to elicit
correct tongue positioning.• Be able to write measurable and objective IEP
goals.• Identify 2 placements techniques• Identify natural tongue positioning for /t/,
/n/, /l/ and /d/.• Know difference between frontal and lateral
lisp disorders.
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• 1). Interdental (frontal) lisp• /s/• /z/
2). Dentalized Lisp disorder3). Lateral lisp disorder4). Palatal lisp disorder
There are 4 Types of Lisp Disorders
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• /s/: the voiceless th is substituted for /s/ (tongue comes in between the top and bottom front teeth)
• /z/: Voiced /th/ is produced for the /z/.
Interdental Lisp Disorder
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• The tongue rests on, or pushes against, the front teeth, the air-flow is directed forwards, Producing a slightly muffled sound.
•
Dentalized Lisp Disorder
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• 3). Lateral lisps are not found in typical speech development. The tongue position for a lateral lisp is very close to the normal position for /l/ and the sound is made with the air-flow directed over the sides of the tongue.
• Because of the way it sounds, this sort of lisp is sometimes referred to as a 'slushy ess' or a 'slushy lisp'. A lateral lisp often sounds 'wet' or 'spitty'.
Lateral Lisp Disorder
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• Not found in typical speech development.
• Mid-section of the tongue comes in contact with the soft palate, produce a 'h' closely followed by a 'y', and prolong it.
Palatal Lisp Disorder
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• Typically developing children dentalised variants of /s/ and /z/ until around 4½ years.
• Lateral lisps are not characteristic of normal development.
• Palatal lisps are not characteristic of normal development
Typical Age of Development /s/ and /z/
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sp st sk/ 7;0 7;0
/sm sn/ 7;0 7;0
/sw/ 7;0 7;0
/sl/ 7;0 7;0
/skw/ 7;0 7;0
/spl/ 7;0 7;0
/spr str skr/ 9;0 9;0
Initial /s/ Clusters Age of Acquisition
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• Not developmentally appropriate.
• Begin intervention immediately• (Jen Taps)
Age of Acquisition for Lateral Lisp
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Two Types of Lisp Disorders
Frontal Lateral
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Frontal Lisp• Most common.• Also called
interdental lisp.• Trademark sound - /th/.• Cause: Tongue is protruding too
far forward. May actually be visible during speech.
• Goal: To bring tongue tip back.
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• In my experience when working on establishing the reduction of initial /s/ clusters, many students front the /s/ phoneme.
Frontal Lisp/Phonological Disorders
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• Often success with these sounds help predict more complex sounds.
Initial /s/ blends in Phonological Intervention
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Lateral Lisp
• Less visible, more audible problem.
• Caused by tongue in wrong location (too low) allowing air to escape (primarily from sides of the mouth).
• Sound produced is often “wet” or spitty. Sometimes called a “slushy S.”
• Goal: Focus air stream out front of the mouth.
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Evaluation and Intervention for Lisp
Disorders
• Evaluation and treatment for frontal and lateral lisps are similar.
• Correct production of both frontal and lateral lisps disorders is in the alveolar ridge region/behind bottom front teeth.
• Use student’s strengths to elicit misproduced phonemes.
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• Initial, medial and final /s/ : 3
• Initial, medial and final /z/: 3
• Initial /s/ clusters: 7
• Final /s/ clusters: 9
22 Total /s/ and /z/ Variations
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Categories of /s/ & /z/
• Initial, medial and final /s/ and /z/
• Initial /s/ clusters
• Final /s/ clusters
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Initial /s/ Blends
• sp (spin)
• st (stump)
• sl (slim)
• sn (snail)
• sm (small)
• sk (skate)
• sw (swing)
• str (string)
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Final /s/ Blend Clusters
• -fs (coughs)
• -sts (forests)
• -ps (cups)
• -sps (wasps)
• -ks (makes)
• -sk (mask)
• -sks (asks)
• -st (fast)
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Start With a Comprehensive Evaluation
• Evaluate initial, medial and final /s/ and /z/ + initial /s/ blendsto attain a comprehensive understanding of student’s ability.
• Establish frontal or lateral lisp disorder.
• Establish natural tongue positioning for /t/.
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• To determine natural tongue placement.
Evaluate all 22 Variations of /s/ and /z/
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• Top front teeth• Bottom front teeth• Essential for placement
• Goal: Keep tongue in the cage (teeth). Acts as a natural barrier for the tongue.
Check for Presence of Front teeth
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Choosing a Target
• Based upon correctly produced word (s) and word position (s).
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sun
sat
spot
best
task
busy
Correctly Produced Word List •
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• /s/ sound in correctly produced words needs to sound crisp before moving onto phrase and sentence level
• Use correctly produced words to reinforce placement
Tongue Placement is Key To Success
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• 1). Alveolar ridge
• 2). Behind bottom front teeth
There are 2 Placements for /s/ and /z/
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• Tongue tip up behind top front teeth.
• Tongue tip behind bottom front teeth.
• Middle of the front and bottom teeth can also occur and lead to distortion
There are Two Possible Tongue Placements for /s/ and /z/
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• /s/ and /z/ can be produced at the alveolar ridge region - (right behind the upper front teeth)
Alveolar Ridge Tongue Placement
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• Tongue tip behind lower front teeth.
Lower Tongue Placement for Lisp Disorders
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• Both are equal and the better one for your student is the placement being naturally used in
• Correctly produced words
Which Tongue Position is Better?
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• Decide which is more comfortable for student (example: sat vs. hats).
• Method: Take correctly produced words and see where the natural placement is.
Contrast Two Possible Tongue Placements
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• Ask student where tongue placement is for both productions:
• Top• Middle• Bottom
Contrast correctly Produced Words with Misproduced Words
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Plan Intervention
• Base intervention on results of screening.
• Consistently focus only on ONE target until mastered.
• Choose appropriate elicitation techniques.
• Use phonetically consistent probe lists.
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How can students work together in a group?
• Frontal lisp: Have other students watch for tongue protrusion (visual).
• Lateral lisp: Students listenfor sharp vs. slushy speech.
• Tongue placement is same regardless of disorder.
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Big /s/
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Auditory, Tactile and Visual Cues for /s/ and
/z/
• Slide finger down arm during production practice.
• E.g. snake sound color or trace a large “s”
use snake cue –wavy motion.
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• Cognates. Have same placement and production with the exception of voicing.
• Airflow restricted or released by tongue causes production and common “hissing” sound.
• Different spellings, same production.
Commonalities About /s/ & /z/
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Elicitation Techniques (Co-articulation)
• Use the other consonants to facilitate production.
• E.g. Tan silo pens Feel sad reads
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/n/ final + /s/ Initial = /s/ Medial Words
Tan silo
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Choices of Elicitation Techniques
• Exploded /t/ or /ts/.
• /ts/ final words, phrases and sentences.
• Straw to demonstrate placement (frontal lisp).
• Co-articulation
• Alveolar target exercises.
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• Jen Taps article-phonology can predict other sounds
• If student had correct placement with one or more initial /s/ clusters
Intervention for Initial /s/ Clusters
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Final /st/ Production Practice
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• Teach /z/ if student can correctly produce on initial screening
• After all other /s/ and /s/ blends have been mastered and it is the last thing
Teaching Placement for /z/
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• Humming Bee breath
• Voiced consonant rule
Techniques for Teaching /z/
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• Place hands over the ears• Close eyes• Hum and say /z/ listen and feel the
vibration from the humming.• Hum and say /s/. Listen and feel • Compare how the /s/ and /z/ felt
and sounded.
Humming Bee Breath
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Voiced Consonant Rule
• In English when there is a voiced consonant preceding the final “s” the /s/ is pronounced as a /z/.
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Voiced Consonant Rule
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Contextual Pronunciation usediffusedevicespousemisusehouseadviceabuseexcuseclose
usediffusedeviseespousemisusehouseadviseabuseexcuseclose
As a verb it’s [z]:
As a noun oradjective it’s [s]:
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Elicitation Techniques (Co-articulation)
• Use the other consonants to facilitate production.
• E.g. Tan silo pens Feel sad reads
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/n/ final + /s/ Initial = /s/ Medial Words
Tan silo
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Choices of Elicitation Techniques for /s/
• Exploded /t/ or /ts/.
• /ts/ final words, phrases and sentences.
• Straw to demonstrate placement (frontal lisp).
• Co-articulation
• Alveolar target exercises.
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• Jen Taps article-phonology can predict other sounds
• If student had correct placement with one or more initial /s/ clusters
Intervention for Initial /s/ Clusters
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Final /st/ Production Practice
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Plural Endings
Sometimes the /z/ is
devoiced after remediating
/s/
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Voice Ending Rule
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Cognates /s/ and /z/
voiced vs.
voiceless
(bus)
(buzz)
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Send Home Productive Homework
1. Practice natural tongue position by sending home correctly produced words.
2. Letter to parent explaining 1. Tongue position for their child2. Practice only correctly produced words.
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Challenges to Success
• Wrong tongue position.
• Tongue thrust.
• Dental Issues (Missing top front teeth).
• Thumb sucking continues.
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How do you know when to dismiss a student?
• When students are able to say all /s/ and /z/ variations with at least 80% mastery at the sentence level.
• When students, parents, and teachers report it is no longer a problem.
• When articulation needs can be addressed at home or in the classroom.
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Questions?
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• http://www.speech-language-therapy.com/index.php?option=com_content&view=article&id=86:lisp&catid=11:admin&Itemid=101
• http://old.csha.org/2013StateConvention/Handouts/FRIDAY/Taps%20Richard_Fri.SC17_Powerful%20Assessment%20and%20Analysis.pdf
• http://www.ishail.org/isha/uploadedFiles/Educational_Development/2013%20Session%2049%20-%20Taps%20Richard.pdf• Smit, Hand, Freilinger, Bernthal, and Bird (1990). Journal of Speech
and Hearing Disorders, 55, 779-798
references