In modern neuroscience, neuroimaging techniques are of particular importance as the main research methods of neuroscientists. Functional magnetic resonance imaging (fMRI) measures changes in the magnetic field of the brain associated with blood flow. Areas of increased blood flow indicate that the corresponding brain region is particularly active. Positron emission tomography (PET) uses radioactive substances to detect a range of metabolic changes in the brain. Electroencephalography (EEG) measures the electrical activity of the brain, usually by placing electrodes on the scalp and measuring the voltage differences between them. These techniques are often employed to measure brain changes under particular circumstances, for example, while engaged in a specific cognitive task. Important insights are also gained from patients and laboratory animals with brain damage, helping neuroscientists understand the function of the damaged area and how its absence affects the remaining brain.
in modern neuroscience neuroimaging techniques are of particular importance as the main research methods of neuroscientists functional magnetic resonance imaging (fmri) measures changes in the magnetic field of the brain associated with blood flow areas of increased blood flow indicate that the corresponding brain region is particularly active positron emission tomography (pet) uses radioactive substances to detect a range of metabolic changes in the brain electroencephalography (eeg) measures the electrical activity of the brain usually by placing electrodes on the scalp and measuring the voltage differences between them these techniques are often employed to measure brain changes under particular circumstances for example while engaged in a specific cognitive task important insights are also gained from patients and laboratory animals with brain damage helping neuroscientists understand the function of the damaged area and how its absence affects the remaining brain