![]() ![]() Figure 1 represents the components of a typical ERP waveform. In contrast, the endogenous (or cognitive) ERPs are elicited in the latter part and its characteristics are determined by the information processing activities required of the subject. The exogenous (or sensory) ERPs are elicited within the first 100 milliseconds from the stimulus and its characteristics are largely depend on the physical properties of the external stimulus. ![]() ERPs can be 1ΔΆ categorized into two types: exogenous and endogenous (ibid.). ERPs reflect brain activity from a pooled synchronous activity of a large population of neurons that occurs in preparation for or in response to discrete events which can be internal or external to a subject. Although Burger and his followers had been mainly focused on spontaneous rhythmic oscillations in scalp voltages (called electroencephalogram, or EEG), more recent research has shifted its focus towards time-locked electrical potentials to sensory, motor, or cognitive events called event-related brain potentials, or ERPs (ibid.). Background Event-related potentials and P300 As far as 1929, Burger has demonstrated the possibility of recording electrical activity of the brain by placing electrodes on the scalp surface of the brain (Fabiani, Gratton, & Federmeier, 2007). As a response to such concerns, this article has been published (originally on ) by including the results of an empirical evaluation of the Emotiv EPOC headset based on an oddball paradigm and the procedure for repeating the experiment for interested individuals. ![]() Although it has been integrated in a vast number of BCI applications, yet, its use for research purposes is being questioned by many researchers. P300 and Emotiv EPOC: Does Emotiv EPOC capture real EEG? Retrieved from: Introduction The Emotiv EPOC headset ( has become one of the leading BCI equipment available today as a result of its low-cost (consumer edition for $, research edition for $500) and features (14 EEG channels plus two references, inertial sensors, wireless connectivity, etc.). 1 Research Use of Emotiv EPOC P300 and Emotiv EPOC: Does Emotiv EPOC capture real EEG? Author: Hiran Ekanayake Last updated: JanuThis article can be cited as follows: Ekanayake, H. ![]()
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