Adjunct Faculty
Adjunct faculty typically have an academic or research appointment at another institution and contribute or collaborate with one or more School of Medicine faculty members or programs.
Adjunct rank detailsKristina T Johnson
Assistant Professor AdjunctAbout
Research
Publications
2025
Genetic Subtypes of Phelan-McDermid Syndrome Exhibit Similar Rates of Change Despite Differences in Level of Impairment in Developmental Constructs
Levy T, Farmer C, Srivastava S, Johnson K, Trayvick J, Brune C, Massa A, Silver H, Siper P, Zweifach J, Halpern D, Foss-Feig J, Bernstein J, Berry-Kravis E, Powell C, Sahin M, Soorya L, Thurm A, Buxbaum J, Kolevzon A, Consortium O. Genetic Subtypes of Phelan-McDermid Syndrome Exhibit Similar Rates of Change Despite Differences in Level of Impairment in Developmental Constructs. American Journal On Intellectual And Developmental Disabilities 2025, 130: 395-413. PMID: 40858310, DOI: 10.1352/1944-7558.130.5.395.Peer-Reviewed Original ResearchConceptsPhelan-McDermid syndromeIntellectual disabilityBehavioral domainsDegree of intellectual disabilityBehavioral featuresLevel of impairmentDegree of impairmentIntellectual functioningDevelopmental constructsSequence variantsBehavioral abnormalitiesExpressive languageWithin-subjectAdaptive behaviorBetween-subjectsDevelopmental domainsSimilarity ratingsMedical featuresConsistent with previous resultsLongitudinal dataImpairmentGenetic subtypesGenetic variationGenetic groupsDevelopmental delayLongitudinal Trajectory of Adaptive Skills in Phelan-McDermid Syndrome
Srivastava S, Johnson K, Farmer C, Levy T, Thurm A, Soorya L, Filip-Dhima R, Quinlan A, Bernstein J, Berry-Kravis E, Powell C, Buxbaum J, Sahin M, Kolevzon A. Longitudinal Trajectory of Adaptive Skills in Phelan-McDermid Syndrome. American Journal On Intellectual And Developmental Disabilities 2025, 130: 380-394. PMID: 40858307, DOI: 10.1352/1944-7558-130.5.380.Peer-Reviewed Original ResearchConversation Initiation in Families With a Toddler Who Is Deaf or Hard of Hearing.
VanDam M, Brock A, Bass-Ringdahl S, Thompson L, Wilson-Fowler E, Jenson D, McCaslin C, Johnson K, De Palma P. Conversation Initiation in Families With a Toddler Who Is Deaf or Hard of Hearing. American Journal Of Speech-Language Pathology 2025, 34: 1256-1268. PMID: 40227124, PMCID: PMC12083768, DOI: 10.1044/2025_ajslp-24-00254.Peer-Reviewed Original ResearchMulti-Feature Audio Fusion for Nonverbal Vocalization Classification
Shah S, Johnson K. Multi-Feature Audio Fusion for Nonverbal Vocalization Classification. 2025, 00: 1-5. DOI: 10.1109/icassp49660.2025.10889317.Peer-Reviewed Original Research
2024
Personalized neuroimaging reveals the impact of children’s interests on language processing in the brain
Olson H, Johnson K, Nishith S, Frosch I, Gabrieli J, D’Mello A. Personalized neuroimaging reveals the impact of children’s interests on language processing in the brain. Imaging Neuroscience 2024, 2: imag-2-00339. PMID: 40800435, PMCID: PMC12290543, DOI: 10.1162/imag_a_00339.Peer-Reviewed Original ResearchFunctional magnetic resonance imagingLanguage processingCanonical language areasActivity patternsGeneric stimuliNeuroimaging approachesLanguage areasPersonal factorsPersonal narrativesHuman brainIdiosyncratic natureBrainMagnetic resonance imagingCognitionResonance imagingLanguageChildren's interestIndividual experienceTopics of personal interestChildrenPersonal interestsNeuroimagingRewardNarrativesStimuliExploratory acoustic analysis of nonverbal affective and communicative vocalizations from non-speaking individuals with autism using cosine similarity
Shah S, Johnson K. Exploratory acoustic analysis of nonverbal affective and communicative vocalizations from non-speaking individuals with autism using cosine similarity. The Journal Of The Acoustical Society Of America 2024, 156: a74-a74. DOI: 10.1121/10.0035163.Peer-Reviewed Original ResearchBenchmarking Automatic Speech Recognition Technology for Natural Language Samples of Children With and Without Developmental Delays
McGonigle E, VanDam M, Wilkinson C, Johnson K. Benchmarking Automatic Speech Recognition Technology for Natural Language Samples of Children With and Without Developmental Delays. Annual International Conference Of The IEEE Engineering In Medicine And Biology Society (EMBC) 2024, 00: 1-5. PMID: 40039537, DOI: 10.1109/embc53108.2024.10782773.Peer-Reviewed Original ResearchConceptsNatural language samplesAutomatic speech recognitionAutomatic speech recognition technologyTypically-developing childrenReal-world speechSpeech recognition technologyNon-speech vocalizationsLanguage samplesLanguage usageLanguage delayMachine learning systemsTD childrenManual comparisonWordsASR modelDevelopmental delaySpeech recognitionRecognition technologyLanguageLearning systemYoung childrenInformative soundDown syndromeChildrenTime-consumingClinical, genetic, and cognitive correlates of seizure occurrences in Phelan-McDermid syndrome
Levy T, Gluckman J, Siper P, Halpern D, Zweifach J, Filip-Dhima R, Holder J, Trelles M, Johnson K, Bernstein J, Berry-Kravis E, Powell C, Soorya L, Thurm A, Buxbaum J, Sahin M, Kolevzon A, Srivastava S. Clinical, genetic, and cognitive correlates of seizure occurrences in Phelan-McDermid syndrome. Journal Of Neurodevelopmental Disorders 2024, 16: 25. PMID: 38730350, PMCID: PMC11084001, DOI: 10.1186/s11689-024-09541-0.Peer-Reviewed Original ResearchConceptsChi-square testAge-of-onsetAdaptive functioningAdaptive behavior composite scoreChi-squareVineland Adaptive Behavior ScalesFull-scale IQAdaptive Behavior ScalesBehavior composite scorePresence of seizuresPhelan-McDermid syndromeBackgroundPhelan-McDermid syndromeGenetic neurodevelopmental disorderMultiple linear regression analysisEstimated IQCognitive correlatesIntellectual functioningLinear regression analysisMedical featuresGenotype-phenotype relationshipsBehavior ScaleCognitive functionGenotype-phenotype analysisComposite scoreSeizure prevalenceBrief Report: Quantifying Speech Production Coordination from Non- and Minimally-Speaking Individuals
Talkar T, Johnson K, Narain J, Maes P, Picard R, Quatieri T. Brief Report: Quantifying Speech Production Coordination from Non- and Minimally-Speaking Individuals. Journal Of Autism And Developmental Disorders 2024, 56: 1266-1280. PMID: 38613592, PMCID: PMC12935788, DOI: 10.1007/s10803-023-06206-0.Peer-Reviewed Original ResearchAn exploratory investigation of acoustic features underlying arousal and valence perception of vocalizations from non-speaking individuals
Radhakrishnan S, O'Brien A, Quatieri T, Johnson K. An exploratory investigation of acoustic features underlying arousal and valence perception of vocalizations from non-speaking individuals. The Journal Of The Acoustical Society Of America 2024, 155: a305-a305. DOI: 10.1121/10.0027595.Peer-Reviewed Original Research