Brain-Computer Interfaces (BCI) have allowed for direct communication from the brain to external applications for the automatic detection of cognitive processes such as error recognition. Error-related potentials (ErrPs) are a particular brain signal elicited when one commits or observes an erroneous event. However, due to the noisy properties of the brain and recording devices, ErrPs vary from instance to instance as they are combined with an assortment of other brain signals, biological noise, and external noise, making the classification of ErrPs a non-trivial problem. Recent works have revealed particular cognitive processes such as awareness, embodiment, and predictability that contribute to ErrP variations. In this paper, we explore the performance of classifier transferability when trained on different ErrP variation datasets generated by varying the levels of awareness and embodiment for a given task. In particular, we look at transference between observational and interactive ErrP categories when elicited by similar and differing tasks. Our empirical results provide an exploratory analysis into the ErrP transferability problem from a data perspective.1 Execution ErrPs are elicited with continuous actions while interaction ErrPs are elicited with discrete actions [6]
This introductory chapter provides an overview of SAW (2004). SAW is a horror film that is entirely representative of the era that created it: the early twenty-first century witnessed a threatened America whose national confidence was shattered, and shady Middle Eastern wars played out in abject images of torture and suffering. Like the aeons of horror tales that precede it, the film is an essay in morality as well as mortality; its antagonist cleaves to a logical, if bloody moral code, while no victim is wholly without guilt. As with all of the best horror, SAW is interested in the spiritual and physical potential of the human body and soul. This aspect of gratification is abundantly evident in the gross extremities of SAW's survival horror. The particular focus is sadism and body trauma, which the film details with surgical precision.
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