Event Abstract

Sequential Processing and Target Probability: Linking the Go/NoGo and Oddball Literatures

  • 1 University of Wollongong, School of Psychology, Australia
  • 2 Western Sydney University, National Institute of Complimentary Medicine, Australia

Aims Traditional Go/NoGo and Oddball tasks require participants to selectively respond to Go/targets and not to NoGo/nontargets, however, target probability differs between these paradigms (i.e., frequent vs. rare, respectively). Due to that, and the differing cognitive processes elicited, separate literatures have developed for each task, with little cross-reference between them. The Sequential Processing Schema uses event-related potential (ERP) components to chart the cognitive processes in an Equiprobable Go/NoGo task, which is intermediate between the Traditional and Oddball paradigms (i.e., 50% Go/targets). We utilised that Schema over two studies to identify the similarities between these three paradigms, and link these disconnected literatures. Methods In study 1, EEG/ERP data were acquired from 60 young adults (Mage = 20.4 years, SD = 3.1) completing a Traditional and Equiprobable Go/NoGo task. Temporal principal components analyses (PCAs) were then used to extract the ERP components associated with these tasks. Subsequently, the temporospatial features of corresponding components were compared, using Tucker’s congruence coefficients, and topographic correlations. Study 2 repeated this approach to compare the processing in the Oddball and Equiprobable tasks, within 66 young adults (Mage = 20.1 years, SD = 2.5). Results The range of ERP components identified in the three paradigms were largely equivalent, indicating that similar neurocognitive processes are required in each task. Novel ERP components were also extracted in Study 1, reflecting minor task differences; however, these were anticipated given the probability differences. Conclusion This research connects the Go/NoGo and Oddball literatures, facilitating an integration of those differing theoretical perspectives. These outcomes also replicate the Schema in paradigms with differing stimulus probabilities, and demonstrate its application in a broader range of tasks, advancing its value as a tool for psychophysiological research.

Keywords: sequential processing, stimulus probability, GoNogo, oddball, equiprobable, Temporal PCA

Conference: ASP2017: 27th Annual Meeting for the Australasian Society for Psychophysiology, Parramatta, Australia, 29 Nov - 1 Dec, 2017.

Presentation Type: Oral Presentation

Topic: Abstract (Student Award)

Citation: Fogarty JS, Barry RJ and Steiner GZ (2019). Sequential Processing and Target Probability: Linking the Go/NoGo and Oddball Literatures. Conference Abstract: ASP2017: 27th Annual Meeting for the Australasian Society for Psychophysiology. doi: 10.3389/conf.fnhum.2017.224.00013

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Received: 10 Oct 2017; Published Online: 25 Jan 2019.

* Correspondence: Mr. Jack S Fogarty, University of Wollongong, School of Psychology, Wollongong, Australia, jf752@uowmail.edu.au

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