Activation of attention networks using frequency analysis of a simple auditory-motor paradigm
| dc.contributor.author | Astrakas, L. G. | en |
| dc.contributor.author | Teicher, M. | en |
| dc.contributor.author | Tzika, A. A. | en |
| dc.date.accessioned | 2015-11-24T19:38:13Z | |
| dc.date.available | 2015-11-24T19:38:13Z | |
| dc.identifier.issn | 1053-8119 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/24124 | |
| dc.rights | Default Licence | - |
| dc.subject | Adult | en |
| dc.subject | Arousal/*physiology | en |
| dc.subject | Attention/*physiology | en |
| dc.subject | Brain Mapping | en |
| dc.subject | Cerebral Cortex/*physiology | en |
| dc.subject | Child | en |
| dc.subject | Dominance, Cerebral/physiology | en |
| dc.subject | Female | en |
| dc.subject | Humans | en |
| dc.subject | Image Processing, Computer-Assisted | en |
| dc.subject | *Magnetic Resonance Imaging | en |
| dc.subject | Male | en |
| dc.subject | Nerve Net/*physiology | en |
| dc.subject | Psychomotor Performance/*physiology | en |
| dc.subject | Reference Values | en |
| dc.subject | Speech Perception/*physiology | en |
| dc.title | Activation of attention networks using frequency analysis of a simple auditory-motor paradigm | en |
| heal.abstract | The purpose of this study was to devise a paradigm that stimulates attention using a frequency-based analysis of the data acquired during a motor task. Six adults (30-40 years of age) and one child (10 years) were studied. Each subject was requested to attend to "start" and "stop" commands every 20 s alternatively and had to respond with the motor task every second time. Attention was stimulated during a block-designed, motor paradigm in which a start-stop commands cycle produced activation at the fourth harmonic of the motor frequency. We disentangled the motor and attention functions using statistical analysis with subspaces spanned by vectors generated by a truncated trigonometric series of motor and attention frequency. During our auditory-motor paradigm, all subjects showed activation in areas that belong to an extensive attention network. Attention and motor functions were coactivated but with different frequencies. While the motor-task-related areas were activated with slower frequency than attention, the activation in the attention-related areas was enhanced every time the subject had to start or end the motor task. We suggest that although a simple block-designed, auditory-motor paradigm stimulates the attention network, motor preparation, and motor inhibition concurrently, a frequency-based analysis can distinguish attention from motor functions. Due to its simplicity the paradigm can be valuable in studying children with attention deficit disorders. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.primary | 10.1006/nimg.2001.1035 | - |
| heal.identifier.secondary | http://www.ncbi.nlm.nih.gov/pubmed/11906236 | - |
| heal.identifier.secondary | http://ac.els-cdn.com/S1053811901910353/1-s2.0-S1053811901910353-main.pdf?_tid=2905af337eac51a02ba97aef26f1fc17&acdnat=1333446777_09ea68d0d0ad030f990e0dc2e58e1b7b | - |
| heal.journalName | Neuroimage | en |
| heal.journalType | peer-reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 2002 | - |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών Υγείας. Τμήμα Ιατρικής | el |
| heal.type | journalArticle | - |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.type.en | Journal article | en |
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