THE MANDELBAUM EFFECT AND NIGHT DRIVING

The question posed in the present study was quite simple: is it possible for the car windscreen to act as an alternative accommodation stimulus to targets on the road ahead, thereby causing the eye to accommodate inappropriately? Initially it was necessary to establish whether typical windscreen-to-driver distances (WD) were similar to dark focus positions and use windscreens placed at these typical distances to investigate any anomalous accommodation behaviour. The characteristics of accommodation behaviour during daytime as compared to night time driving conditions were of importance. Furthermore the effects of a simultaneous task were of concern since under normal driving conditions concentration is divided between operating the vehicle and other activities such as listening to audio equipment, navigating and/or talking. It has been shown that the resting state is affected by increased mental load, anxiety, stress and cognitive demand. The variation of the resting state with these non-visual factors is thought to be due to its dependence on the aggregate inputs of the parasympathetic and sympathetic branches of the autonomic system. It may be possible that some of these effects allow the Mandelbaum effect to occur more readily under certain driving conditions. (A) For the covering abstract see IRRD E102207.

  • Availability:
  • Corporate Authors:

    Elsevier

    The Boulevard, Langford Lane
    Kidlington, Oxford  United Kingdom  OX5 1GB
  • Authors:
    • CHAUHAN, K
    • CHARMAN, N
  • Publication Date: 1998

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00771495
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 0-08-04357
  • Files: ITRD
  • Created Date: Nov 4 1999 12:00AM