Paper Info
Title
The Spiking Search over Time and Space Model (sSoTS): Simulating Dual Task Experiments and the Temporal Dynamics of Preview Search
Abstract
The visual information we receive in the real world is usually prioritized through time as well as space. Evidence presented by Watson and Humphreys [18] supports the view that new information in search tasks is prioritised by (amongst other processes) active ignoring of old items - a process they termed visual marking. In this work we present, an explicit computational model of visual marking using biologically plausible activation functions. The "spiking search over time and space" model (sSoTS) incorporates different synaptic components (NMDA, AMPA, GABA) and a frequency adaptation mechanism based on [Ca2 +] sensitive K+current. This frequency adaptation current when coupled with a process of active inhibition applied to old items, leads to old items being de-prioritised (and new items prioritised) across time in search. Furthermore, sSoTS can simulate the temporal dynamics of preview search [13] and dual task experimental results [12] . The results indicate that the sSoTS model can provide a biologically plausible account of human search over time as well as space.
Year
DOI
Venue
2007
10.1007/978-3-540-77343-6_22
WAPCV
Keywords
Field
DocType
explicit computational model,active inhibition,temporal dynamics,ssots model,simulating dual task experiments,search task,spiking search,visual information,old item,space model,preview search,biologically plausible account,human search,activation function,visual search,computer model
Computer science,Spacetime,Artificial intelligence
Conference
Volume
ISSN
Citations 
4840
0302-9743
0
PageRank 
References 
Authors
0.34
2
4
Name
Order
Citations
PageRank
Eirini Mavritsaki1133.40
Dietmar Heinke2348.05
Glyn W. Humphreys38818.93
Gustavo Deco41004156.20