What is the difference between electroencephalogram (EEG) and event-related potential (ERP)? We are willing to pay 400 points to the best one! ! !

1. Different acquisition methods

1. Electroencephalogram: It is a method of recording brain activity using electrophysiological indicators. When the brain is active, a large number of neurons synchronize the synchronized processes. The after-touch potential is formed by summing.

2. Event-related potential: It is a special kind of brain-evoked potential, which uses the brain potentials caused by multiple or diverse stimuli by intentionally giving special psychological meaning to the stimulus.

2. Different purposes

1. Electroencephalography: It is the basic theoretical research of brain science, and brain wave monitoring is widely used in its clinical practice.

2. Event-related potential: reflects the neuroelectrophysiological changes of the brain during the cognitive process, also known as cognitive potential, which means that when people cognitively process a certain topic, from Brain potentials recorded on the surface of the skull.

3. Different characteristics

1. Electroencephalogram: derived from the postsynaptic potential on the top dendrites of pyramidal cells. The formation of synchronized brain wave rhythms is also related to the activity of the corticothalamic non-specific projection system.

2. Event-related potential: Give specific stimulation to the nervous system (from receptors to cerebral cortex), or enable the brain to process the stimulation (positive or negative) information. Between the system and the brain The bioelectrical response produced by the corresponding part can be detected and has a relatively fixed time interval (time-locked relationship) and a specific phase with the stimulation.

Baidu Encyclopedia-Brain Waves

Baidu Encyclopedia-Event-related Potentials