Using FMRI brain activation to identify cognitive states associated with perception of tools and dwellings

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Using FMRI brain activation to identify cognitive states associated with perception of tools and dwellings
Authors: Svetlana V. Shinkareva, Robert A. Mason, Vicente L. Malave, Wei Wang, Tom M. Mitchell, Marcel Adam Just
Citation: PLOS ONE 3 (1): e1394. 2008
Database(s): Google Scholar cites PubMed (PMID/18167553)
DOI: 10.1371/journal.pone.0001394.
PMCID:2148074
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Using fMRI brain activation to identify cognitive states associated with perception of tools and dwellings is a functional magnetic resonance imaging (fMRI) study with human subjects viewing line drawings of tools and dwellings.

Contents

[edit] Subjects

Subject group #1 (help)
Right-handed adults
Subjects/♂/♀: 12 /  / 8
Age: (–)
Nationality: define nationality
Approval: University of Pittsburgh and Carnegie Mellon Institutional Review Boards
Databases:

Group 1 of 12 right-handed adults were included in the study.

The study on the human subjects was approved by the University of Pittsburgh and Carnegie Mellon Institutional Review Boards.

The researchers excluded six additional participant due to head motion.

[edit] Method

[edit] Scanning

fMRI with a Siemens Allegra 3.0T scanner.

[edit] Experiment

Visual presentation of line drawings from two categories: tools and dwellings. The different objects were "drill, hammer, screwdriver, pliers, saw, apartment, castle, house, hut, and igloo."

[edit] Data analysis

Processing with SPM99 for slice timing correction, motion correction, linear trend removal, temporal smoothing and spatial normalization to the MNI template. Regions identified with AAL.

A machine learning classifier was trained on 400 voxels with the Gaussian Naïve Bayes model from Learning to decode cognitive states from brain images.

[edit] Related papers

  1. Learning to decode cognitive states from brain images
  2. Predicting human brain activity associated with the meanings of nouns
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