search query: @supervisor Sams, Mikko / total: 60
reference: 20 / 60
« previous | next »
Author:Rolig, Kaisa
Title:Feasibility of mobile reaction time measurement technology for neurocognitive assessment
Mobiilin mittausteknologian soveltuvuus neurokognitiviiseen arviointiin
Publication type:Master's thesis
Publication year:2010
Pages:[10] + 44      Language:   eng
Department/School:Lääketieteellisen tekniikan ja laskennallisen tieteen laitos
Main subject:Laskennallinen tekniikka   (S-114)
Supervisor:Sams, Mikko
Instructor:Ojanen, Ville
Electronic version URL: http://urn.fi/URN:NBN:fi:aalto-201203131493
OEVS:
Electronic archive copy is available via Aalto Thesis Database.
Instructions

Reading digital theses in the closed network of the Aalto University Harald Herlin Learning Centre

In the closed network of Learning Centre you can read digital and digitized theses not available in the open network.

The Learning Centre contact details and opening hours: https://learningcentre.aalto.fi/en/harald-herlin-learning-centre/

You can read theses on the Learning Centre customer computers, which are available on all floors.

Logging on to the customer computers

  • Aalto University staff members log on to the customer computer using the Aalto username and password.
  • Other customers log on using a shared username and password.

Opening a thesis

  • On the desktop of the customer computers, you will find an icon titled:

    Aalto Thesis Database

  • Click on the icon to search for and open the thesis you are looking for from Aaltodoc database. You can find the thesis file by clicking the link on the OEV or OEVS field.

Reading the thesis

  • You can either print the thesis or read it on the customer computer screen.
  • You cannot save the thesis file on a flash drive or email it.
  • You cannot copy text or images from the file.
  • You cannot edit the file.

Printing the thesis

  • You can print the thesis for your personal study or research use.
  • Aalto University students and staff members may print black-and-white prints on the PrintingPoint devices when using the computer with personal Aalto username and password. Color printing is possible using the printer u90203-psc3, which is located near the customer service. Color printing is subject to a charge to Aalto University students and staff members.
  • Other customers can use the printer u90203-psc3. All printing is subject to a charge to non-University members.
Location:P1 Ark Aalto  1361   | Archive
Keywords:reaction time
neurocognitive assessment
mobile measurement method
assessing feasibility
reaktioaika
neurokognitiivinen arviointi
mobiili mittaustapa
soveltuvuuden arviointi
Abstract (eng): Mobile phones of today are highly sophisticated small scale computers.
They offer a novel cost-efficient way to measure reaction times.
However, for the measurements to be feasible to neurocognitive assessment, they have to fulfil certain requirements.

Variances of mobile- and traditional computer-based measurement method were compared to study the measurement error caused by the mobile system.
The repeatability of the measurements were also studied to ensure their reliability.
Mobile and computer measurements were compared to determine the agreement of the two methods and lastly we conducted series of power analyses to determine the number of subjects needed to detect a statistically significant effect using either of the measurement method.

We found that the mobile measurement method does not increase variance in reaction time measurements when compared to computer measurements.
They are also as reliable as the computer measurements and their statistical power is marginally stronger.
However, agreement of the two methods is quite poor, which would lead to difficulties, were the two methods used interchangeably.
Nevertheless, the results are rather promising and seem to confirm the feasibility of the mobile reaction time measurement method for neurocognitive assessment.
Abstract (fin): Nykyiset matkapuhelimet ovat kehittyneitä, pienen mittakaavan tietokoneita.
Ne tarjoavat uuden ja kustannustehokkaan tavan mitata reaktioaikoja.
Niiden täytyy kuitenkin täyttää tietyt vaatimukset, jotta ne soveltuisivat neurokognitiiviseen arviointiin.

Mobiililaitteen aiheuttaman mittavirheen tutkimiseksi mobiililla ja perinteisellä tietokonepohjaisella mittaohjelmistolla tehtyjen mittausten variansseja verrattiin keskenään.
Myös mittausten toistettavuuksia tarkasteltiin niiden luotettavuuden varmentamiseksi.
Kahdella mittaohjelmistolla saatuja mittaustuloksia verrattiin keskenään yhtenevyyden arvioimiseksi.
Lisäksi mittauksille suoritettiin tilastollinen voima-analyysi, jotta voitiin verrata tilastollisesti merkittävän efektin tunnistamiseksi vaadittavaa koehenkilöiden lukumäärää molemmilla mittaustavoilla.

Tulosten perusteella voidaan sanoa, että mobiili mittaustapa ei lisää merkittävästi mittausten varianssi verrattuna tietokonemittauksiin.
Mittaustapa on myös yhtä luotettava kuin tietokonemittaukset ja sen tilastollinen voima on hivenen suurempi.
Sen sijaan kahdella tavalla saadut mittaukset eivät ole yhtenevät, mikä aiheuttanee ongelmia, jos kahta mittaustapaa on tarkoitus käyttää samassa tutkimuksessa.
Kuitenkin voidaan sanoa, että tulokset ovat melko lupaavia ja vaikuttavat vahvistavan oletuksen mobiilin mittalaitteen soveltuvuudesta neurokognitiiviseen arviointiin.
ED:2010-08-18
INSSI record number: 40140
+ add basket
« previous | next »
INSSI