VISUAL SEARCH OF TRAFFIC SCENES: ON THE EFFECT OF LOCATION EXPECTATIONS

THE PRESENT STUDY INVESTIGATES TOP-DOWN GOVERNED VISUAL SELECTION IN NATURAL TRAFFIC SCENES. THE SUBJECTS HAD TO SEARCH FOR A TARGET OBJECT (FOR EXAMPLE, A TRAFFIC SIGN, OR OTHER ROAD USERS) WHICH WAS EMBEDDED IN A NATURAL TRAFFIC SCENE. GIVEN A PARTICULAR PROTOTYPICAL SCENE, THE TARGET WAS LOCATED EITHER AT A LIKELY (EXPECTED) ON UNLIKELY (UNEXPECTED) POSITION. THE PROBABILITY THAT A TARGET OBJECT APPEARED AT A LIKELY LOCATION WAS VARIED BETWEEN GROUPS OF SUBJECTS. THE RESULTS SHOWED THE EXISTENCE OF SCENE DEPENDENT SCANNING STRATEGIES: SEARCH IN THE UNEXPECTED CONDITION WAS SIGNIFICANTLY MORE ERROR PRONE THAN SEARCH IN THE EXPECTED CONDITION. THIS SUGGESTS THAT SUBJECTS STRATEGICALLY PREPARE FOR THE UPCOMING STIMULUS AND ONLY SEARCH THOSE LOCATIONS WHICH ARE LIKELY TO CONTAIN A TARGET. IF THE TARGET IS NOT FOUND AT THOSE LIKELY LOCATIONS, SUBJECTS TEND TO GIVE A NEGATIVE RESPONSE. THIS EFFECT REMAINED AFTER REPEATED PRESENTATION. THE IMPORTANCE OF THESE FINDINGS FOR SEARCH DURING ACTUAL DRIVING IS DISCUSSED. (A) FOR THE COVERING ABSTRACT OF THE CONFERENCE SEE IRRD 858984.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0444893628
• Corporate Authors:

  NORTH-HOLLAND

  P O BOX 211
  AMSTERDAM,   Netherlands  1000 AE
• Authors:
  • Theeuwes, J
  • Hagenzieker, M P
• Publication Date: 1993

Language

• English

Media Info

• Features: References;
• Pagination: p. 149-58
• Serial:
  • VISION IN VEHICLES IV. PROCEEDINGS OF THE FOURTH INTERNATIONAL CONFERENCE ON VISION IN VEHICLES, UNIVERSITY OF LEIDEN, THE NETHERLANDS, 27-29 AUGUST, 1991
  • Publisher: NORTH-HOLLAND

Subject/Index Terms

• TRT Terms: Conferences; Driving; Errors; Location; Motor reactions; Perception; Test procedures; Time; Vision
• Uncontrolled Terms: Selection
• ITRD Terms: 8525: Conference; 1855: Driving (veh); 6440: Error; 9061: Location; 2229: Perception; 2247: Reaction (human); 9072: Selection; 6288: Test method; 5414: Time; 2066: Vision
• Subject Areas: Data and Information Technology; Design; Safety and Human Factors; Society;

Filing Info

• Accession Number: 00639317
• Record Type: Publication
• Source Agency: Institute for Road Safety Research, SWOV
• ISBN: 0 444 89362 8
• Files: ITRD
• Created Date: Dec 13 1993 12:00AM