سال انتشار: ۱۳۸۳

محل انتشار: دهمین کنفرانس سالانه انجمن کامپیوتر ایران

تعداد صفحات: ۹

نویسنده(ها):

abbas babajani – electrical and computer engineering department university of tehran
mohammadhosein nekooei –
hamid soltanian zadeh –

چکیده:

fro the first time an integrated model for magnetoencephalography MEG and functional magnetic resonance imaging Fmri is proposed the MEG and fMRI outputs in the proposed model are related to the corresponding aspects of neural activities in a voxel post synaptic potentials PSPs and action potentials APs are two main signals generated by neural activities. in the model both of MEG and fMRI ARE ONLY correlated to PSPs and do not have correlation with APs. each PSP is modeled by the direction and strength of its current flow which are treated as random variables. the overall neural activity in each voxel is used for equivalent current dipole ECD in MEG nd as input of balloon model for producing blood oxygen level dependent BOLD signal in fMRI.