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A stab in the dark: The distance threshold of target identification in low light
- Source :
- Cogent Psychology, Vol 6, Iss 1 (2019)
- Publication Year :
- 2019
- Publisher :
- Taylor & Francis Group, 2019.
-
Abstract
- Prior research shows that increased distance and decreased light result in less correct eyewitness identifications, yet their combined effect is not well understood. The aim of the present study was to establish the maximum distance in low lux (lx) where an eyewitness’s later identification in target present (TP) line-ups is no longer reliable. We randomized participants (N = 178) into one of three lx conditions (high:300 lx, medium:10 lx, low:0.7 lx) and presented them with eight targets (one at a time) at eight separate distances (6–20 m). Each target-presentation was followed by an 8-person simultaneous TP line-up (i.e., there was a .125 probability of choosing the target correctly by chance). We found that the rate of correct TP identifications decreased with increased distance in all lx conditions. At 20 m the rate of correct TP identifications was .53 in the high lx condition, .41 in the medium lx condition and .11 in the low lx condition. The generalizability of our findings to overall eyewitness accuracy is limited by the exclusion of target absent line-ups, yet our findings show that reliable and correct target present identifications are very unlikely following observations made in low lighting (0.7 lx) at 20 m.
- Subjects :
- Neurophysiology and neuropsychology
eyewitness identification
lux
business.industry
QP351-495
05 social sciences
050109 social psychology
Pattern recognition
Facial recognition system
050105 experimental psychology
Stab
BF1-990
Identification (information)
Psychology
0501 psychology and cognitive sciences
Artificial intelligence
business
distance
light
General Psychology
Eyewitness identification
Distance threshold
face recognition
Subjects
Details
- Language :
- English
- ISSN :
- 23311908
- Volume :
- 6
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Cogent Psychology
- Accession number :
- edsair.doi.dedup.....64f6caedbd378128cfe612e051947bb5