<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "Detection of Cognitive States from fMRI data using Machine Learning Techniques"^^ . "Over the past decade functional Magnetic Resonance\nImaging (fMRI) has emerged as a powerful\ntechnique to locate activity of human brain while\nengaged in a particular task or cognitive state. We\nconsider the inverse problem of detecting the cognitive\nstate of a human subject based on the fMRI\ndata. We have explored classification techniques\nsuch as Gaussian Naive Bayes, k-Nearest\nNeighbour and Support Vector Machines. In order\nto reduce the very high dimensional fMRI data, we\nhave used three feature selection strategies. Discriminating\nfeatures and activity based features\nwere used to select features for the problem of\nidentifying the instantaneous cognitive state given\na single fMRI scan and correlation based features\nwere used when fMRI data from a single time interval\nwas given. A case study of visuo-motor sequence\nlearning is presented. The set of cognitive\nstates we are interested in detecting are whether the\nsubject has learnt a sequence, and if the subject is\npaying attention only towards the position or towards\nboth the color and position of the visual\nstimuli. We have successfully used correlation\nbased features to detect position-color related cognitive\nstates with 80% accuracy and the cognitive\nstates related to learning with 62.5% accuracy."^^ . "2007" . . . . . . . . . . . . . . "Vishwajeet"^^ . "Singh"^^ . "Vishwajeet Singh"^^ . . "K. P."^^ . "Miyapuram"^^ . "K. P. Miyapuram"^^ . . "Raju S."^^ . "Bapi"^^ . "Raju S. Bapi"^^ . . . . . . "Detection of Cognitive States from fMRI data using Machine Learning Techniques (PDF)"^^ . . . . . . . . . "IJCAI07-093.pdf"^^ . . . "Detection of Cognitive States from fMRI data using Machine Learning Techniques (Image (PNG))"^^ . . . . . . "preview.png"^^ . . . "Detection of Cognitive States from fMRI data using Machine Learning Techniques (Indexer Terms)"^^ . . . . . . "indexcodes.txt"^^ . . "HTML Summary of #5364 \n\nDetection of Cognitive States from fMRI data using Machine Learning Techniques\n\n" . "text/html" . . . "Brain Imaging" . . . "Machine Learning" . .