P300
The MindGame: A P300-based brain-computer interface game
Wed, 06/01/2010 - 12:45 | 
Jason Rutter
New entry in Digiplay games research bibliography:
We present a Brain-Computer Interface (BCI) game. the MindGame, based oil the P300 event-related potential In the MindGame interface P300 events are translated into movements of a character on a three-dimensional game board A linear feature selection and classification scheme is applied to identify P300 events and calculate gradual feedback features from a scalp electrode array. The classification during the online run of the game is computed oil a single-trial basis without averaging over subtrials We achieve classification rates of O 65 on single-trials during the online operation of the system while providing gradual feedback to the player.
Workload assessment of computer gaming using a single-stimulus event-related potential paradigm
Mon, 10/03/2008 - 23:49 | Jason Rutter
New entry in Digiplay games research bibliography:
Behavioral and event-related potential (ERP) measures were used to assess cognitive workload from expert computer gamers playing a "first-person shooter" video game. Game difficulty level was manipulated in separate conditions by adjusting the number of enemies (view, easy, medium, and hard). Infrequently presented single-stimulus tones were either ignored or counted across difficulty conditions. Game performance and tone-counting accuracy declined as game difficulty increased. ERP component amplitudes diminished for both the tone ignore and counting conditions as game difficulty increased. The findings suggest that cognitive workload induced by video gaming can be reliably assessed through behavioral and neuroelectric means, and that the single-stimulus paradigm can be a useful tool for evaluating workload in an immersive stimulus environment with less distraction than conventional tools. \copyright2007 Elsevier B.V. All rights reserved.
Chronic violent video game exposure and desensitization to violence: Behavioral and event-related brain potential data
Fri, 09/03/2007 - 20:21 | Jason Rutter
New entry in Digiplay games research bibliography:
Numerous studies have shown that exposure to media violence increases aggression, though the mechanisms of this effect have remained elusive. One theory posits that repeated exposure to media violence desensitizes viewers to real world violence, increasing aggression by blunting aversive reactions to violence and removing normal inhibitions against aggression. Theoretically, violence desensitization should be reflected in the amplitude of the P300 component of the event-related brain potential (ERP), which has been associated with activation of the aversive motivational system. In the current study, violent images elicited reduced P300 amplitudes among violent, as compared to nonviolent video game players. Additionally, this reduced brain response predicted increased aggressive behavior in a later task. Moreover, these effects held after controlling for individual differences in trait aggressiveness. These data are the first to link media violence exposure and aggressive behavior to brain processes hypothetically associated with desensitization.
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801 reads | 
Tags: Adolescents, Aggression, Behavior, Behavioural sciences, Brad J. Bushman, Bruce D. Bartholow, Crime, Desensitization, Evaluative Categorizations, Impulsive Aggression, Journal of Experimental Social Psychology, Marc A. Sestir
Source, Mass media, Media, Media influence, Media violence research, Negativity, Nonviolent video game, P300, P300, Psychology, Stimuli, Television Violence, Trait Aggressiveness, Validity, Violence, War, War
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