Transcription of Chapter 2: Introduction to Point Processes
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Chapter 2: Introduction to Point Processes
Chapter 2: Introduction to Point Processes I. Point Processes are used to describe data that are localized in space or time In Chapter 1, we saw an example of neuronal activity in the supplemental eye field (SEF) expressed in terms of a raster plot and a peri-stimulus time histogram (Fig. ). The raster plot shows locations of action potentials in time for multiple trials, and the peristimulus time histogram counts the number of such events is small time bins, averaged over all of the trials. These types of plots provide a means to express data that consists of discrete events localized in time. Analyzing data of this sort presents its own unique challenges, and poses its own set of questions.
concentrated in specific tissues and the radioisotopes decay, emitting positrons. These 4. emissions represent a spatiotemporal point process since they are localized occurrences throughout the tissue and in time. After being emitted, these positrons interact with
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