Encoding of variability of landmark-based spatial information
Identifieur interne : 000577 ( PascalFrancis/Corpus ); précédent : 000576; suivant : 000578Encoding of variability of landmark-based spatial information
Auteurs : Bradley R. Sturz ; Kent D. BodilySource :
- Psychological research : (Print) [ 0340-0727 ] ; 2010.
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Abstract
Recent evidence suggests humans optimally weight visual and haptic information (i.e., in inverse proportion to their variances). A more recent proposal is that spatial information (i.e., distance and direction) may also adhere to Bayesian principles and be weighted in an optimal fashion. A fundamental assumption of this proposal is that participants encode the variability of spatial information. In a three-dimensional virtual-environment open-field search task, we provide evidence that participants encoded the variability of landmark-based spatial information. Specifically, participants searched for a hidden goal location in a 5 x 5 matrix of raised bins. Participants experienced five training phases in which they searched for a hidden goal that maintained a unique spatial relationship to each of four distinct landmarks. Each landmark was assigned an a priori value of locational uncertainty such that each varied in its ability to predict a goal (i.e., varied in number of potential goal locations). Following training, participants experienced conflict trials in which two distinct landmarks were presented simultaneously. Participants preferentially responded to the landmark with the lower uncertainty value (i.e., smaller number of potential goal locations). Results provide empirical evidence for the encoding of variability of landmark-based spatial information and have implications for theoretical accounts of spatial learning.
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NO : | PASCAL 10-0483036 INIST |
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ET : | Encoding of variability of landmark-based spatial information |
AU : | STURZ (Bradley R.); BODILY (Kent D.) |
AF : | Department of Psychology, Armstrong Atlantic State University, 229 Science Center, 11935 Abercorn Street/Savannah, GA 31419/Etats-Unis (1 aut.); Department of Psychology, Georgia Southern University, P. O. Box 8041/Statesboro, GA 30460/Etats-Unis (2 aut.) |
DT : | Publication en série; Niveau analytique |
SO : | Psychological research : (Print); ISSN 0340-0727; Coden PSREDJ; Allemagne; Da. 2010; Vol. 74; No. 6; Pp. 560-567; Bibl. 1 p.1/4 |
LA : | Anglais |
EA : | Recent evidence suggests humans optimally weight visual and haptic information (i.e., in inverse proportion to their variances). A more recent proposal is that spatial information (i.e., distance and direction) may also adhere to Bayesian principles and be weighted in an optimal fashion. A fundamental assumption of this proposal is that participants encode the variability of spatial information. In a three-dimensional virtual-environment open-field search task, we provide evidence that participants encoded the variability of landmark-based spatial information. Specifically, participants searched for a hidden goal location in a 5 x 5 matrix of raised bins. Participants experienced five training phases in which they searched for a hidden goal that maintained a unique spatial relationship to each of four distinct landmarks. Each landmark was assigned an a priori value of locational uncertainty such that each varied in its ability to predict a goal (i.e., varied in number of potential goal locations). Following training, participants experienced conflict trials in which two distinct landmarks were presented simultaneously. Participants preferentially responded to the landmark with the lower uncertainty value (i.e., smaller number of potential goal locations). Results provide empirical evidence for the encoding of variability of landmark-based spatial information and have implications for theoretical accounts of spatial learning. |
CC : | 002A26E03 |
FD : | Codage; Etude expérimentale; Perception espace; Vision; Réalité virtuelle; Variabilité; Homme |
FG : | Perception; Cognition |
ED : | Coding; Experimental study; Space perception; Vision; Virtual reality; Variability; Human |
EG : | Perception; Cognition |
SD : | Codificación; Estudio experimental; Percepción espacio; Visión; Realidad virtual; Variabilidad; Hombre |
LO : | INIST-7066.354000191322250050 |
ID : | 10-0483036 |
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