The Developmental Trajectory of Spatial Listening Skills in Normal-Hearing Children

Purpose: To establish the age at which children can complete tests of spatial listening and to measure the normative relationship between age and performance. Method: Fifty-six normal-hearing children, ages 1.5-7.9 years, attempted tests of the ability to discriminate a sound source on the left from...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Journal of speech, language, and hearing research language, and hearing research, 2012-06, Vol.55 (3), p.865-878
Hauptverfasser: Lovett, Rosemary Elizabeth Susan, Kitterick, Padraig Thomas, Huang, Shan, Summerfield, Arthur Quentin
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 878
container_issue 3
container_start_page 865
container_title Journal of speech, language, and hearing research
container_volume 55
creator Lovett, Rosemary Elizabeth Susan
Kitterick, Padraig Thomas
Huang, Shan
Summerfield, Arthur Quentin
description Purpose: To establish the age at which children can complete tests of spatial listening and to measure the normative relationship between age and performance. Method: Fifty-six normal-hearing children, ages 1.5-7.9 years, attempted tests of the ability to discriminate a sound source on the left from one on the right, to localize a source, to track moving sources, and to perceive speech in noise. Results: Tests of left-right discrimination, movement tracking, and speech perception were completed by 75% of children older than 3 years. Children showed adult levels of performance from age 1.5 years (movement tracking), 3 years (left-right discrimination), and 6 years (localization and speech in noise). Spatial release from masking--calculated as the difference in speech reception thresholds between conditions with spatially coincident and spatially separate speech and noise--remained constant at 5 dB from age 3 years. Data from a separate study demonstrate the age at which children with cochlear implants can complete the same tests. Assessments of left-right discrimination, movement tracking, and speech perception were completed by 75% of children who are older than 5 years and who wear cochlear implants. Conclusion: These data can guide the selection of tests for future studies and inform the interpretation of results from clinical populations.
doi_str_mv 10.1044/1092-4388(2011/11-0096)
format Article
fullrecord <record><control><sourceid>gale_proqu</sourceid><recordid>TN_cdi_proquest_miscellaneous_1125271728</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><galeid>A337718899</galeid><ericid>EJ983912</ericid><sourcerecordid>A337718899</sourcerecordid><originalsourceid>FETCH-LOGICAL-c529t-6757e2ffc25df38599ab1676e8f20720961ff3bc14db7fb082705a413103c2d43</originalsourceid><addsrcrecordid>eNptkl9v0zAUxSMEYmPwDRBEQkLjIZv_JY4fpzIYqIKHlmfLca5bF8cudoK0b4-jboOh2g-2rn_nyvfoFMVbjC4wYuwSI0EqRtv2nCCMLzGuEBLNhyfFKa7rthIYkaf5fk-dFC9S2qG8MGueFyeEEI5bjk-L1XoL5Uf4DS7sB_CjcuU6qh3oMcTbMphytVejzdWlTSN46zfl6qd1LpXWl99CHJSrbkDF-WGxta6P4F8Wz4xyCV7dnWfFj0_X68VNtfz--cvialnpmoixanjNgRijSd0b2tZCqA43vIHWEMRJngcbQzuNWd9x06GWcFQrhilGVJOe0bPi_NB3H8OvCdIoB5s0OKc8hClJjEmd5-Skzei7_9BdmKLPv5PZKsYFY4z_pTbKgbTehDEqPTeVV5TybFkrRKaqI9QGPETlggdjc_kRf3GEz7uHweqjgvf_CLag3LhNwU2jDT49BpsDqGNIKYKR-2gHFW_zUHLOiZwTIOcEyDkn2RE55yQL39zZMXUD9A-y-1xk4PUBgGj1w_P1V9FSgQn9A-B1vOI</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1024794447</pqid></control><display><type>article</type><title>The Developmental Trajectory of Spatial Listening Skills in Normal-Hearing Children</title><source>MEDLINE</source><source>Education Source</source><creator>Lovett, Rosemary Elizabeth Susan ; Kitterick, Padraig Thomas ; Huang, Shan ; Summerfield, Arthur Quentin</creator><creatorcontrib>Lovett, Rosemary Elizabeth Susan ; Kitterick, Padraig Thomas ; Huang, Shan ; Summerfield, Arthur Quentin</creatorcontrib><description>Purpose: To establish the age at which children can complete tests of spatial listening and to measure the normative relationship between age and performance. Method: Fifty-six normal-hearing children, ages 1.5-7.9 years, attempted tests of the ability to discriminate a sound source on the left from one on the right, to localize a source, to track moving sources, and to perceive speech in noise. Results: Tests of left-right discrimination, movement tracking, and speech perception were completed by 75% of children older than 3 years. Children showed adult levels of performance from age 1.5 years (movement tracking), 3 years (left-right discrimination), and 6 years (localization and speech in noise). Spatial release from masking--calculated as the difference in speech reception thresholds between conditions with spatially coincident and spatially separate speech and noise--remained constant at 5 dB from age 3 years. Data from a separate study demonstrate the age at which children with cochlear implants can complete the same tests. Assessments of left-right discrimination, movement tracking, and speech perception were completed by 75% of children who are older than 5 years and who wear cochlear implants. Conclusion: These data can guide the selection of tests for future studies and inform the interpretation of results from clinical populations.</description><identifier>ISSN: 1092-4388</identifier><identifier>EISSN: 1558-9102</identifier><identifier>DOI: 10.1044/1092-4388(2011/11-0096)</identifier><identifier>PMID: 22271871</identifier><language>eng</language><publisher>United States: American Speech-Language-Hearing Association (ASHA)</publisher><subject>Age Differences ; Age Factors ; Assistive Technology ; Auditory Perception ; Child ; Child Development ; Child Development - physiology ; Child Language ; Child, Preschool ; Children ; Children &amp; youth ; Cochlear Implantation - rehabilitation ; Cochlear implants ; Comparative Analysis ; Deafness ; Ears &amp; hearing ; Hearing (Physiology) ; Hearing Impairments ; Hearing loss ; Humans ; Infant ; Language Tests - standards ; Listening Comprehension ; Listening Skills ; Male ; Neonates ; Noise ; Perception Tests ; Perceptual Development ; Perceptual Masking - physiology ; Reference Values ; Reproducibility of Results ; Sound Localization - physiology ; Space Perception - physiology ; Spatial Ability ; Speech ; Speech Perception - physiology ; Speech Reception Threshold Test - standards ; Voice recognition ; Word Recognition</subject><ispartof>Journal of speech, language, and hearing research, 2012-06, Vol.55 (3), p.865-878</ispartof><rights>COPYRIGHT 2012 American Speech-Language-Hearing Association</rights><rights>Copyright American Speech-Language-Hearing Association Jun 2012</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c529t-6757e2ffc25df38599ab1676e8f20720961ff3bc14db7fb082705a413103c2d43</citedby><cites>FETCH-LOGICAL-c529t-6757e2ffc25df38599ab1676e8f20720961ff3bc14db7fb082705a413103c2d43</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,781,785,27926,27927</link.rule.ids><backlink>$$Uhttp://eric.ed.gov/ERICWebPortal/detail?accno=EJ983912$$DView record in ERIC$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22271871$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Lovett, Rosemary Elizabeth Susan</creatorcontrib><creatorcontrib>Kitterick, Padraig Thomas</creatorcontrib><creatorcontrib>Huang, Shan</creatorcontrib><creatorcontrib>Summerfield, Arthur Quentin</creatorcontrib><title>The Developmental Trajectory of Spatial Listening Skills in Normal-Hearing Children</title><title>Journal of speech, language, and hearing research</title><addtitle>J Speech Lang Hear Res</addtitle><description>Purpose: To establish the age at which children can complete tests of spatial listening and to measure the normative relationship between age and performance. Method: Fifty-six normal-hearing children, ages 1.5-7.9 years, attempted tests of the ability to discriminate a sound source on the left from one on the right, to localize a source, to track moving sources, and to perceive speech in noise. Results: Tests of left-right discrimination, movement tracking, and speech perception were completed by 75% of children older than 3 years. Children showed adult levels of performance from age 1.5 years (movement tracking), 3 years (left-right discrimination), and 6 years (localization and speech in noise). Spatial release from masking--calculated as the difference in speech reception thresholds between conditions with spatially coincident and spatially separate speech and noise--remained constant at 5 dB from age 3 years. Data from a separate study demonstrate the age at which children with cochlear implants can complete the same tests. Assessments of left-right discrimination, movement tracking, and speech perception were completed by 75% of children who are older than 5 years and who wear cochlear implants. Conclusion: These data can guide the selection of tests for future studies and inform the interpretation of results from clinical populations.</description><subject>Age Differences</subject><subject>Age Factors</subject><subject>Assistive Technology</subject><subject>Auditory Perception</subject><subject>Child</subject><subject>Child Development</subject><subject>Child Development - physiology</subject><subject>Child Language</subject><subject>Child, Preschool</subject><subject>Children</subject><subject>Children &amp; youth</subject><subject>Cochlear Implantation - rehabilitation</subject><subject>Cochlear implants</subject><subject>Comparative Analysis</subject><subject>Deafness</subject><subject>Ears &amp; hearing</subject><subject>Hearing (Physiology)</subject><subject>Hearing Impairments</subject><subject>Hearing loss</subject><subject>Humans</subject><subject>Infant</subject><subject>Language Tests - standards</subject><subject>Listening Comprehension</subject><subject>Listening Skills</subject><subject>Male</subject><subject>Neonates</subject><subject>Noise</subject><subject>Perception Tests</subject><subject>Perceptual Development</subject><subject>Perceptual Masking - physiology</subject><subject>Reference Values</subject><subject>Reproducibility of Results</subject><subject>Sound Localization - physiology</subject><subject>Space Perception - physiology</subject><subject>Spatial Ability</subject><subject>Speech</subject><subject>Speech Perception - physiology</subject><subject>Speech Reception Threshold Test - standards</subject><subject>Voice recognition</subject><subject>Word Recognition</subject><issn>1092-4388</issn><issn>1558-9102</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNptkl9v0zAUxSMEYmPwDRBEQkLjIZv_JY4fpzIYqIKHlmfLca5bF8cudoK0b4-jboOh2g-2rn_nyvfoFMVbjC4wYuwSI0EqRtv2nCCMLzGuEBLNhyfFKa7rthIYkaf5fk-dFC9S2qG8MGueFyeEEI5bjk-L1XoL5Uf4DS7sB_CjcuU6qh3oMcTbMphytVejzdWlTSN46zfl6qd1LpXWl99CHJSrbkDF-WGxta6P4F8Wz4xyCV7dnWfFj0_X68VNtfz--cvialnpmoixanjNgRijSd0b2tZCqA43vIHWEMRJngcbQzuNWd9x06GWcFQrhilGVJOe0bPi_NB3H8OvCdIoB5s0OKc8hClJjEmd5-Skzei7_9BdmKLPv5PZKsYFY4z_pTbKgbTehDEqPTeVV5TybFkrRKaqI9QGPETlggdjc_kRf3GEz7uHweqjgvf_CLag3LhNwU2jDT49BpsDqGNIKYKR-2gHFW_zUHLOiZwTIOcEyDkn2RE55yQL39zZMXUD9A-y-1xk4PUBgGj1w_P1V9FSgQn9A-B1vOI</recordid><startdate>201206</startdate><enddate>201206</enddate><creator>Lovett, Rosemary Elizabeth Susan</creator><creator>Kitterick, Padraig Thomas</creator><creator>Huang, Shan</creator><creator>Summerfield, Arthur Quentin</creator><general>American Speech-Language-Hearing Association (ASHA)</general><general>American Speech-Language-Hearing Association</general><scope>7SW</scope><scope>BJH</scope><scope>BNH</scope><scope>BNI</scope><scope>BNJ</scope><scope>BNO</scope><scope>ERI</scope><scope>PET</scope><scope>REK</scope><scope>WWN</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>0-V</scope><scope>3V.</scope><scope>7RV</scope><scope>7T9</scope><scope>7X7</scope><scope>7XB</scope><scope>88B</scope><scope>88E</scope><scope>88G</scope><scope>88I</scope><scope>88J</scope><scope>8A4</scope><scope>8AF</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>8G5</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ALSLI</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>CCPQU</scope><scope>CJNVE</scope><scope>CPGLG</scope><scope>CRLPW</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>KB0</scope><scope>M0P</scope><scope>M0S</scope><scope>M1P</scope><scope>M2M</scope><scope>M2O</scope><scope>M2P</scope><scope>M2R</scope><scope>MBDVC</scope><scope>NAPCQ</scope><scope>PQEDU</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PSYQQ</scope><scope>Q9U</scope><scope>S0X</scope></search><sort><creationdate>201206</creationdate><title>The Developmental Trajectory of Spatial Listening Skills in Normal-Hearing Children</title><author>Lovett, Rosemary Elizabeth Susan ; Kitterick, Padraig Thomas ; Huang, Shan ; Summerfield, Arthur Quentin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c529t-6757e2ffc25df38599ab1676e8f20720961ff3bc14db7fb082705a413103c2d43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Age Differences</topic><topic>Age Factors</topic><topic>Assistive Technology</topic><topic>Auditory Perception</topic><topic>Child</topic><topic>Child Development</topic><topic>Child Development - physiology</topic><topic>Child Language</topic><topic>Child, Preschool</topic><topic>Children</topic><topic>Children &amp; youth</topic><topic>Cochlear Implantation - rehabilitation</topic><topic>Cochlear implants</topic><topic>Comparative Analysis</topic><topic>Deafness</topic><topic>Ears &amp; hearing</topic><topic>Hearing (Physiology)</topic><topic>Hearing Impairments</topic><topic>Hearing loss</topic><topic>Humans</topic><topic>Infant</topic><topic>Language Tests - standards</topic><topic>Listening Comprehension</topic><topic>Listening Skills</topic><topic>Male</topic><topic>Neonates</topic><topic>Noise</topic><topic>Perception Tests</topic><topic>Perceptual Development</topic><topic>Perceptual Masking - physiology</topic><topic>Reference Values</topic><topic>Reproducibility of Results</topic><topic>Sound Localization - physiology</topic><topic>Space Perception - physiology</topic><topic>Spatial Ability</topic><topic>Speech</topic><topic>Speech Perception - physiology</topic><topic>Speech Reception Threshold Test - standards</topic><topic>Voice recognition</topic><topic>Word Recognition</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lovett, Rosemary Elizabeth Susan</creatorcontrib><creatorcontrib>Kitterick, Padraig Thomas</creatorcontrib><creatorcontrib>Huang, Shan</creatorcontrib><creatorcontrib>Summerfield, Arthur Quentin</creatorcontrib><collection>ERIC</collection><collection>ERIC (Ovid)</collection><collection>ERIC</collection><collection>ERIC</collection><collection>ERIC (Legacy Platform)</collection><collection>ERIC( SilverPlatter )</collection><collection>ERIC</collection><collection>ERIC PlusText (Legacy Platform)</collection><collection>Education Resources Information Center (ERIC)</collection><collection>ERIC</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Social Sciences Premium Collection</collection><collection>ProQuest Central (Corporate)</collection><collection>Nursing &amp; Allied Health Database</collection><collection>Linguistics and Language Behavior Abstracts (LLBA)</collection><collection>Health &amp; Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Education Database (Alumni Edition)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Psychology Database (Alumni)</collection><collection>Science Database (Alumni Edition)</collection><collection>Social Science Database (Alumni Edition)</collection><collection>Education Periodicals</collection><collection>STEM Database</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>Social Science Premium Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>ProQuest One Community College</collection><collection>Education Collection</collection><collection>Linguistics Collection</collection><collection>Linguistics Database</collection><collection>ProQuest Central Korea</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>Nursing &amp; Allied Health Database (Alumni Edition)</collection><collection>Education Database</collection><collection>Health &amp; Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Psychology Database</collection><collection>Research Library</collection><collection>Science Database</collection><collection>Social Science Database</collection><collection>Research Library (Corporate)</collection><collection>Nursing &amp; Allied Health Premium</collection><collection>ProQuest One Education</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>ProQuest One Psychology</collection><collection>ProQuest Central Basic</collection><collection>SIRS Editorial</collection><jtitle>Journal of speech, language, and hearing research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lovett, Rosemary Elizabeth Susan</au><au>Kitterick, Padraig Thomas</au><au>Huang, Shan</au><au>Summerfield, Arthur Quentin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><ericid>EJ983912</ericid><atitle>The Developmental Trajectory of Spatial Listening Skills in Normal-Hearing Children</atitle><jtitle>Journal of speech, language, and hearing research</jtitle><addtitle>J Speech Lang Hear Res</addtitle><date>2012-06</date><risdate>2012</risdate><volume>55</volume><issue>3</issue><spage>865</spage><epage>878</epage><pages>865-878</pages><issn>1092-4388</issn><eissn>1558-9102</eissn><abstract>Purpose: To establish the age at which children can complete tests of spatial listening and to measure the normative relationship between age and performance. Method: Fifty-six normal-hearing children, ages 1.5-7.9 years, attempted tests of the ability to discriminate a sound source on the left from one on the right, to localize a source, to track moving sources, and to perceive speech in noise. Results: Tests of left-right discrimination, movement tracking, and speech perception were completed by 75% of children older than 3 years. Children showed adult levels of performance from age 1.5 years (movement tracking), 3 years (left-right discrimination), and 6 years (localization and speech in noise). Spatial release from masking--calculated as the difference in speech reception thresholds between conditions with spatially coincident and spatially separate speech and noise--remained constant at 5 dB from age 3 years. Data from a separate study demonstrate the age at which children with cochlear implants can complete the same tests. Assessments of left-right discrimination, movement tracking, and speech perception were completed by 75% of children who are older than 5 years and who wear cochlear implants. Conclusion: These data can guide the selection of tests for future studies and inform the interpretation of results from clinical populations.</abstract><cop>United States</cop><pub>American Speech-Language-Hearing Association (ASHA)</pub><pmid>22271871</pmid><doi>10.1044/1092-4388(2011/11-0096)</doi><tpages>14</tpages></addata></record>
fulltext fulltext
identifier ISSN: 1092-4388
ispartof Journal of speech, language, and hearing research, 2012-06, Vol.55 (3), p.865-878
issn 1092-4388
1558-9102
language eng
recordid cdi_proquest_miscellaneous_1125271728
source MEDLINE; Education Source
subjects Age Differences
Age Factors
Assistive Technology
Auditory Perception
Child
Child Development
Child Development - physiology
Child Language
Child, Preschool
Children
Children & youth
Cochlear Implantation - rehabilitation
Cochlear implants
Comparative Analysis
Deafness
Ears & hearing
Hearing (Physiology)
Hearing Impairments
Hearing loss
Humans
Infant
Language Tests - standards
Listening Comprehension
Listening Skills
Male
Neonates
Noise
Perception Tests
Perceptual Development
Perceptual Masking - physiology
Reference Values
Reproducibility of Results
Sound Localization - physiology
Space Perception - physiology
Spatial Ability
Speech
Speech Perception - physiology
Speech Reception Threshold Test - standards
Voice recognition
Word Recognition
title The Developmental Trajectory of Spatial Listening Skills in Normal-Hearing Children
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-18T06%3A04%3A39IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_proqu&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=The%20Developmental%20Trajectory%20of%20Spatial%20Listening%20Skills%20in%20Normal-Hearing%20Children&rft.jtitle=Journal%20of%20speech,%20language,%20and%20hearing%20research&rft.au=Lovett,%20Rosemary%20Elizabeth%20Susan&rft.date=2012-06&rft.volume=55&rft.issue=3&rft.spage=865&rft.epage=878&rft.pages=865-878&rft.issn=1092-4388&rft.eissn=1558-9102&rft_id=info:doi/10.1044/1092-4388(2011/11-0096)&rft_dat=%3Cgale_proqu%3EA337718899%3C/gale_proqu%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1024794447&rft_id=info:pmid/22271871&rft_galeid=A337718899&rft_ericid=EJ983912&rfr_iscdi=true