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The N400 is a component of time-locked EEG signals known as event-related potentials (ERP). It is a negative-going deflection that peaks around 400 milliseconds post-stimulus onset, although it can extend from 250-500 ms, and is typically maximal over centro-parietal electrode sites.
The ERN is a sharp negative going signal which begins about the same time an incorrect motor response begins, (response locked event-related potential), and typically peaks from 80 to 150 milliseconds (ms) after the erroneous response begins (or 40–80 ms after the onset of electromyographic activity).
The N1 deflection may be detected at most recording sites, including the occipital, parietal, central, and frontal electrode sites. [1] Although, the visual N1 is widely distributed over the entire scalp, it peaks earlier over frontal than posterior regions of the scalp, [ 1 ] [ 2 ] suggestive of distinct neural and/or cognitive correlates. [ 3 ]
For instance, a negative-going peak that is the first substantial peak in the waveform and often occurs about 100 milliseconds after a stimulus is presented is often called the N100 (indicating its latency is 100 ms after the stimulus and that it is negative) or N1 (indicating that it is the first peak and is negative); it is often followed by ...
N400 (neuroscience), an event-related potential component elicited by meaningful stimuli (words, pictures, etc.) N-400 road (Spain), a highway connecting Toledo to Cuenca; Honda N400, a car similar to the Honda N360; Samsung N400, a mobile phone by Samsung; Form N-400, United States Citizenship and Immigration Services application for ...
This has been tested by taking advantage of two brain responses: the ELAN, which reflects the phrase-structure-building, and the N400, which reflects semantic processing; the model predicts that sentences eliciting an ELAN (a violation of local phrase structure) will not elicit an N400, since the building of phrase structure is a prerequisite ...
Since the go/no-go paradigm with N200 can be used to indicate the timing of information noting, it is a good candidate to examine the order of language processing and production. Schmitt et al. (2000) [8] utilized the occurrence of N200 in the go/no-go paradigm to determine the timing of semantic and phonological information processing ...
The P600 can be elicited in both visual (reading) and auditory (listening) experiments, [1] and is characterized as a positive-going deflection with an onset around 500 milliseconds after the stimulus that elicits it; it often reaches its peak around 600 milliseconds after presentation of the stimulus (hence its name), and lasts several hundred ...