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SUMMARY:Fragile Memories for Fleeting Percepts - Professor Howard Bowman\,
  School of Psychology\, University of Birmingham School of Computing\, Uni
 versity of Kent at Canterbury Wellcome Centre for Human Neuroimaging (Visi
 ting)
DTSTART:20200422T123000Z
DTEND:20200422T140000Z
UID:TALK135904@talks.cam.ac.uk
CONTACT:Louise White
DESCRIPTION:The Simultaneous Type/ Serial Token (STST) model of temporal a
 ttention and working memory (Bowman & Wyble\, 2007) was published over 10 
 years ago as a theory of the attentional blink and associated phenomena. I
 n the intervening period\, the scope of the theory has grown\, becoming a 
 theory of the episodic nature of attention and perception (Wyble et al\, 2
 011). Recently\, we have also been considering the implications of the STS
 T model for theories of conscious perception. If one interprets the neural
  network model that implements the STST theory literally\, it makes two pa
 rticular predictions for conscious experience: 1) that we can pre-consciou
 sly search our sensory environments for salient stimuli (type-information)
 \; and 2) that we cannot pre-consciously search our sensory environment on
  the basis of episodic information (token-information). The latter of thes
 e fits well with theories of conscious perception based upon event individ
 uation (Kanwisher\, 2001).\nUsing rapid serial visual presentation\, I wil
 l report a series of EEG (Bowman et al\, 2014) and behavioural (Aviles et 
 al\, 2020) experiments that provide evidence in support of these two predi
 ctions. These experiments focus on the fragility\, even absence\, of memor
 y for fleetingly presented stimuli. We argue that these findings provide s
 upport for a theory we call the tokenised percept hypothesis.\nAvilés\, A
 .\, Bowman\, H.\, & Wyble\, B. (2020). On the limits of evidence accumulat
 ion of the preconscious percept. Cognition\, 195\, 104080.\nBowman\, H.\, 
 & Wyble\, B. (2007). The simultaneous type\, serial token model of tempora
 l attention and working memory. Psychological review\, 114(1)\, 38.\nBowma
 n\, H.\, Filetti\, M.\, Alsufyani\, A.\, Janssen\, D.\, & Su\, L. (2014). 
 Countering countermeasures: detecting identity lies by detecting conscious
  breakthrough. PloS one\, 9(3).\nKanwisher\, N. (2001). Neural events and 
 perceptual awareness. Cognition\, 79(1-2)\, 89-113.\nWyble\, B.\, Potter\,
  M. C.\, Bowman\, H.\, & Nieuwenstein\, M. (2011). Attentional episodes in
  visual perception. Journal of Experimental Psychology: General\, 140(3)\,
  488.\n\nHoward Bowman is Professor of Cognitive Neuroscience in Psycholog
 y at the University of Birmingham and Professor of Cognition and Logic in 
 Computing at the University of Kent. He also holds a visiting position at 
 the Wellcome Centre for Human Neuroimaging\, UCL. For the first half of hi
 s career\, he worked in theoretical computer science\; specific contributi
 ons were on decision procedures for temporal logics and process calculi in
  concurrency theory. More recently\, he has worked in cognitive neuroscien
 ce\, with particular focus on theories of temporal attention (e.g. the Sim
 ultaneous Type/ Serial Token model) and the role of oscillations in episod
 ic memory formation (e.g. the Synch/deSynch model). He also has interests 
 in methods development for neuroimaging\, e.g. problems of small samples\,
  and over-fitting of hyper-parameters in machine learning and region of in
 terest selection. Finally\, he is currently commercialising his EEG findin
 gs in a forensics context with the company vision metric and funding from 
 Innovate UK.\n\n
LOCATION:Zoom meeting
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