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[{"key": "dc.contributor.author", "value": "Lehtom\u00e4ki, Minna", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2014-10-08T18:28:25Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2014-10-08T18:28:25Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2014", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.other", "value": "oai:jykdok.linneanet.fi:1446867", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/44390", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "T\u00e4ss\u00e4 tutkielmassa tutkitaan kognitiiviseen neuropsykologiaan kuuluvaa ilmi\u00f6t\u00e4, nimelt\u00e4\u00e4n \u00e4\u00e4nteiden kategorinen havaitseminen, k\u00e4ytt\u00e4m\u00e4ll\u00e4 mukautuvaa koeasetelmaa. Tarkoituksena on ollut kehitt\u00e4\u00e4 ohjelma, jonka avulla pystytt\u00e4isiin mahdollisimman nopeasti ja tehokkaasti (optimaalisesti) m\u00e4\u00e4ritt\u00e4m\u00e4\u00e4n jokaiselle koehenkil\u00f6lle yksil\u00f6llinen malli, jota havainnot noudattavat.\n\n\u00c4\u00e4nteiden kategorinen havaitseminen tarkoittaa, ett\u00e4 ihminen pyrkii luokittelemaan \u00e4\u00e4nteet kategorioihin niiden akustisten ominaisuuksien perusteella ilman, ett\u00e4 h\u00e4n erottaisi kahden eri \u00e4\u00e4nteen v\u00e4limuotoja. Esimerkiksi kuullessaan \u00e4\u00e4nteen, joka on puoliksi /ba/ ja puoliksi /pa/, ihminen ei erota kuultua \u00e4\u00e4nnett\u00e4 v\u00e4limuodoksi vaan tulkitsee sen joko \u00e4\u00e4nteeksi /ba/ tai /pa/.\n\nT\u00e4ss\u00e4 tutkielmassa tarkoituksena on mallintaa, miten koehenkil\u00f6t kuulevat \u00e4\u00e4nteet /ba/ ja /pa/ sek\u00e4 n\u00e4iden v\u00e4limuodot ja mitata aivos\u00e4hk\u00f6k\u00e4yr\u00e4ss\u00e4 (EEG) tapahtuvia muutoksia koe- ja kontrollitilanteessa. Koetilanne suoritetaan toistamalla koehenkil\u00f6ille useita kertoja 9 erilaista \u00e4\u00e4nt\u00e4 ja mittaamalla, kumpi \u00e4\u00e4nne oli koehenkil\u00f6n mielest\u00e4 kyseess\u00e4. Vasteen (koehenkil\u00f6n vastausten) oletetaan noudattavan logistista regressiomallia. Kontrollitilanteessa puolestaan koehenkil\u00f6 pelk\u00e4st\u00e4\u00e4n passiivisesti kuuntelee \u00e4\u00e4ni\u00e4.\nKoetta varten on tehty MATLAB-ohjelma, joka pyrkii valitsemaan kolme niin sanottua \u201dkiinnostavaa \u00e4\u00e4nt\u00e4\u201d, joiden kohdalla koehenkil\u00f6 on ep\u00e4varmin, kummasta \u00e4\u00e4nteest\u00e4 on kyse. N\u00e4iden kiinnostavien \u00e4\u00e4nten m\u00e4\u00e4r\u00e4\u00e4 painotetaan toistamalla yksitt\u00e4ist\u00e4 kiinnostavaa \u00e4\u00e4nt\u00e4 kaksinkertainen m\u00e4\u00e4r\u00e4 verrattuna yksitt\u00e4iseen \u201dei-kiinnostavaan \u00e4\u00e4neen\u201d, jolloin kolmea kiinnostavaa \u00e4\u00e4nt\u00e4 toistetaan yhteens\u00e4 saman verran kuin kuutta ei-kiinnostavaa \u00e4\u00e4nt\u00e4. Apuna kiinnostavien \u00e4\u00e4nten valitsemisessa on bin\u00e4\u00e4rinen etsint\u00e4algoritmi, joka pyrkii puolitushaulla l\u00f6yt\u00e4m\u00e4\u00e4n kaksi kiinnostavaa \u00e4\u00e4nt\u00e4. Kun kaksi \u00e4\u00e4nt\u00e4 on l\u00f6ydetty, algoritmi jatkaa mallin estimoimista suurimman uskottavuuden menetelm\u00e4ll\u00e4 kaikesta ker\u00e4tyst\u00e4 aineistosta.\n\nT\u00e4t\u00e4 tutkielmaa varten on suoritettu mittauksia koehenkil\u00f6ill\u00e4, joiden perusteella ohjelman toimintaa ja kehitt\u00e4miskohtia on analysoitu. Samalla on ker\u00e4tty EEG-dataa psykologian laitoksen analysoitavaksi. Suoritettujen mittausten perusteella ohjelma n\u00e4ytt\u00e4isi toimivan melko hyvin ja on hyv\u00e4 pohja koetilanteen kehitt\u00e4miseksi viel\u00e4 optimaalisemmaksi.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Minna Lehtom\u00e4ki (mijosiro) on 2014-10-08 18:28:24.415682. Form: Pro gradu -lomake (https://kirjasto.jyu.fi/julkaisut/julkaisulomakkeet/pro-gradu-lomake). JyX data: [jyx_publishing-allowed (fi) =True]", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by jyx lomake-julkaisija (jyx-julkaisija@noreply.fi) on 2014-10-08T18:28:25Z\nNo. of bitstreams: 2\nURN:NBN:fi:jyu-201410082954.pdf: 1611559 bytes, checksum: b5d0e90844f47411db1525189ea6bfe0 (MD5)\nlicense.html: 4855 bytes, checksum: 6209c027d716fa647b880a3c342ea3d8 (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2014-10-08T18:28:25Z (GMT). No. of bitstreams: 2\nURN:NBN:fi:jyu-201410082954.pdf: 1611559 bytes, checksum: b5d0e90844f47411db1525189ea6bfe0 (MD5)\nlicense.html: 4855 bytes, checksum: 6209c027d716fa647b880a3c342ea3d8 (MD5)\n Previous issue date: 2014", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "1 verkkoaineisto (90 sivua)", "language": null, "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.format.mimetype", "value": "application/pdf", "language": null, "element": "format", "qualifier": "mimetype", "schema": "dc"}, {"key": "dc.language.iso", "value": "fin", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": "en", "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.subject.other", "value": "bin\u00e4\u00e4rinen etsint\u00e4algoritmi", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "D-optimaalisuus", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "kategorinen havaitseminen", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "koesuunnittelu", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "kognitiivinen neuropsykologia", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "logistinen regressio", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "MATLAB", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "mukautuva koeasetelma", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Mukautuvan koeasetelman soveltaminen kategorisen havaitsemisen tutkimiseen neuropsykologiassa", "language": null, "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "master thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-201410082954", "language": null, "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu -tutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Master\u2019s thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Matemaattis-luonnontieteellinen tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Sciences", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Matematiikan ja tilastotieteen laitos", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Department of Mathematics and Statistics", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Tilastotiede", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Statistics", "language": "en", "element": "subject", "qualifier": "discipline", 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