機能的磁気共鳴画像法(fMRI)は、脳の神経活動を直接測定するのではなく、血中酸素化レベルに依存した信号(blood oxygenation level-dependent信号、BOLD信号)を検出することで、神経活動が活発な部位を特定する方法です。fMRIはさまざまな研究で活用されていますが ...

Explore how functional MRI reveals brain activity by measuring BOLD response, a key indicator of internal processing and neural firing. The more the brain cells are firing, the more oxygen they use up ...

As reviewed above, fMRI has many potential advantages in studying patients with cognitive impairment. fMRI can be acquired on a standard clinical magnet during the same session as structural imaging.

Using fMRI data collected from people viewing film clips, MIT neuroscientists created a comprehensive map of the cerebral cortex, identifying 24 networks that perform specific functions. The cerebral ...

An international team, led by researchers at the Champalimaud Foundation (CF), has shown – for the first time in a realistic way – that it may be possible to diagnose Parkinson’s disease (PD) years ...

In brains of control mice (left) and PD mice (right), from bottom to top: neuronal activity in a representative animal; cerebral blood flow mapping; fMRI of visual stimulation; fMRI of olfactory ...

Discover how functional Magnetic Resonance Imaging (fMRI) can lead to misleading results, shown through a study involving deceased Atlantic salmon. The salmon was presented with a series of ...