Neurobiological Component Report

Name	P100
Description	The C1 and P1 (also called the P100) are two human scalp-recorded event-related brain potential (ERP) components, collected by means of a technique called electroencephalography (EEG). The P1 is called the P1 because it is the first positive going component (when also using a mastoid reference point) and its peak is normally observed in around 100ms. Both components are related to processing of visual stimuli and are under the category of potentials called visually evoked potentials (VEPs).
Picture	From Wiki.
No. of Studies (Positive/Negative)	6 (6/0)

Name in Literature	Reference	Research Type	Statistical Result	Relation Description
P1	Dai, 2009	patients and normal controls		The MDD participants had larger P1 amplitude for sad cue com...... The MDD participants had larger P1 amplitude for sad cue compared with other groups. More...
P1	Kahkonen, 2007	patients and normal controls		P1 and P1m latencies were decreased in patients with MDD, co...... P1 and P1m latencies were decreased in patients with MDD, compared with those in healthy subjects. The magnitude of decrease in P1/P1m latency correlated negatively with the severity of depression in the patients. More...
P1	Dai, 2011	patients and normal controls		The MDD participants showed a smaller P1 amplitude for posit...... The MDD participants showed a smaller P1 amplitude for positive words in bilateral hemispheres compared with the other groups. More...
P1	Mingtian, 2010	patients and normal controls		In the ND (never-depressed) group, at the right parietal-occ...... In the ND (never-depressed) group, at the right parietal-occipital region, P1 amplitude during valid positive-neutral picture pairs was significantly larger than that during invalid positive-neutral picture pairs; this pattern did not appear in the MDD group. More...
P1	Yang, 2011	patients only		MDD patients showed decreased P1 latency over right posterio...... MDD patients showed decreased P1 latency over right posterior regions to negative relative to positive target stimuli More...
P1	Dai, 2011	patients and normal controls		The MDD participants had a larger P1 amplitude for sad faces...... The MDD participants had a larger P1 amplitude for sad faces in the positive priming condition compared with the other groups. More...

Name in Literature	Related Components
	Level	Approved Name(Name in Literature)	Type	Reference	Research Type	Statistical Result	Relation Description	All
P1		Cognitive processing bias(negativity bias in emotional perception)	cognition and behavior	Yang, 2011	patients only		MDD patients showed decreased P1 latency over right posterio...... MDD patients showed decreased P1 latency over right posterior regions to negative relative to positive target stimuli, reflecting a very early onset of the negativity bias in emotional perception. More...

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Note:
1. The different color of the nodes denotes the level of the nodes.

Genetic/Epigenetic Locus	Protein and Other Molecule	Cell and Molecular Pathway	Neural System	Cognition and Behavior	Symptoms and Signs	Environment	MDD

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