By Steven J. Luck
The event-related capability (ERP) strategy, within which neural responses to particular occasions are extracted from the EEG, offers a strong noninvasive software for exploring the human mind. This quantity describes sensible tools for ERP study besides the underlying theoretical intent. It bargains researchers and scholars an important consultant to designing, undertaking, and studying ERP experiments. This moment variation has been thoroughly up to date, with extra fabric, new chapters, and extra available causes. Freely on hand supplementary fabric, together with numerous online-only chapters, provide extended or complicated therapy of chosen issues. the 1st half the publication offers crucial heritage info, describing the origins of ERPs, the character of ERP parts, and the layout of ERP experiments. the second one half the e-book deals a close therapy of the most steps concerned with carrying out ERP experiments, masking such subject matters as recording the EEG, filtering the EEG and ERP waveforms, and quantifying amplitudes and latencies. all through, the emphasis is on rigorous experimental layout and comparatively uncomplicated analyses. New fabric within the moment variation comprises complete chapters dedicated to elements, artifacts, measuring amplitudes and latencies, and statistical research; up to date assurance of recording applied sciences; concrete examples of experimental layout; and plenty of extra figures. on-line chapters conceal such issues as overlap, localization, writing and reviewing ERP papers, and developing and working an ERP lab.
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Additional resources for An Introduction to the Event-Related Potential Technique
Instead, one electron pushes the next one, which pushes the next one, and so forth. Similarly, when a dipole is active in the brain, you don’t have to wait for charged particles to move all the way from the dipole to the surface. Instead, a postsynaptic potential in a set of neurons creates an essentially instantaneous voltage field throughout the entirety of the head, with no meaningful delay. And don’t forget that you are measuring voltage, which is the potential for current to flow and not the actual flow of current.
The chapter 36 Chapter 2 ends with a general discussion of methods that can be used to identify the underlying components that vary across groups or conditions in a given study. This chapter is designed to provide you with a deep conceptual understanding of ERPs, and it is therefore somewhat abstract. You need this kind of understanding to evaluate previous ERP experiments and to design new ERP experiments. In fact, this chapter includes six specific “rules” for interpreting ERP data. However, if you are in the middle of collecting or analyzing data from an ERP experiment and you need to know the practical details of how to collect clean data and perform appropriate analyses, you might want to skip ahead to chapters 5–10.
The actual recordings can easily be carried out by a graduate student or an advanced undergraduate, and the costs related to storing and analyzing the data are minimal. These costs have dropped a great deal over the past 20 years, largely due to the decreased cost of computing equipment. fMRI is fairly expensive (typically $500/ hour), and PET is exorbitantly expensive, primarily due to the need for radioactive isotopes with short half-lives and medical personnel. Microelectrode recordings in non-human primates are also fairly expensive due to the per diem costs of maintaining the monkeys, the cost of the surgical and animal care facilities, and the high level of expertise required to record electrophysiological data from awake, behaving monkeys.