Tamas Soton 2008

Optimizations in Spatial Cognition: Strategies and Trade-offs

Overview ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Optimality in Spatial Cognition ,[object Object],[object Object],(Theoretical) Optimum ‘ do the best possible’ Behavioural Optimum ‘ do the best you can’ increase spatial knowledge (memory) reduce travel distance (energy) Optimization find the target with minimal effort exploratory strategies ?

Research question & hypotheses 1. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Experiment I. – Physical Environment ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Makany, T., Redhead, E., & Dror, I. E. (2007). Spatial exploration patterns determine navigation efficiency: Trade-off between memory demands and distance travelled. QJEP, 60, 1594-1602 .

Experiment I. – Physical Environment ,[object Object],[object Object],extensive exploration (higher memory demands) shorter overall distance travelled (lower energy cost) limited exploration (lower memory demands) longer overall distance travelled (higher energy cost) Makany, T., Redhead, E., & Dror, I. E. (2007). Spatial exploration patterns determine navigation efficiency: Trade-off between memory demands and distance travelled. QJEP, 60, 1594-1602 . (n=28) (n=11) Memory Distance

Experiment I. – Physical Environment ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Makany, T., Redhead, E., & Dror, I. E. (2007). Spatial exploration patterns determine navigation efficiency: Trade-off between memory demands and distance travelled. QJEP, 60, 1594-1602 .

Research question & hypothesis 2. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Experiment 2. – AB Simulation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Makany, T., & Makowsky, M. (submitted). Human spatial exploratory strategies in an agent-based model: Trade-off between distance and memory demands. Spatial Cognition Conf., Freiburg (Germany).

Experiment 2. – AB Simulation ,[object Object],[object Object],extensive exploration (higher memory demands) limited exploration (lower memory demands) longer overall distance travelled (higher energy cost) shorter overall distance travelled (lower energy cost) Circular (n=84) Axial (n=35) Makany, T., & Makowsky, M. (submitted). Human spatial exploratory strategies in an agent-based model: Trade-off between distance and memory demands. Spatial Cognition Conf., Freiburg (Germany). Memory Distance

Experiment 2. – AB Simulation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Makany, T., & Makowsky, M. (submitted). Human spatial exploratory strategies in an agent-based model: Trade-off between distance and memory demands. Spatial Cognition Conf., Freiburg (Germany). Memory Distance Memory Distance

Overall Summary RQ: What are the cognitive and behavioural factors that influence spatial exploration? - Hy1: Humans explore novel physical environments differently, according to how they optimize their spatial cognition - Hy 2: Humans are optimizing their explorations in terms of a trade-off - Hy3: Human exploratory behaviour can be simulated by using simple optimization strategies - Hy 4: Our model reproduced the same trade-off as in humans ✔ ✔ ✔ ✔ ,[object Object],[object Object],increase spatial knowledge (memory) reduce travel distance (energy) Optimization find the target with minimal effort exploratory strategies ?

Overall Summary ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Optimizations in Spatial Cognition: Strategies and Trade-offs Thank you! Acknowledgements Dr. Edward Redhead – University of Southampton Dr. Itiel Dror – University of Southampton Dr. Anne McBride – Univerisity of Southampton *T.M. was supported by the School of Psychology PhD Scholarship

Cluster Analysis Dendrogram I.

Cluster Analysis Dendrogram 2.

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