Comparing exponential race and signal detection models of encoding stimuli into visual short-term memory.
Research output: Contribution to journal › Journal article › Research › peer-review
Standard
Comparing exponential race and signal detection models of encoding stimuli into visual short-term memory. / Larsen, Axel; Markussen, Bo; Bundesen, Claus.
In: Journal of Experimental Psychology: Human Perception and Performance, Vol. 46, No. 6, 2020, p. 643-655.Research output: Contribution to journal › Journal article › Research › peer-review
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Comparing exponential race and signal detection models of encoding stimuli into visual short-term memory.
AU - Larsen, Axel
AU - Markussen, Bo
AU - Bundesen, Claus
PY - 2020
Y1 - 2020
N2 - The exponential race model embodied in the theory of visual attention (TVA) and the power law generalization of the sample size model (SSPL) provide competing accounts of the mechanisms that determine how exposure duration, set size, and attention influence how many items enter visual short-term memory (VSTM). In the exponential race model, items compete for entry into VSTM in a processing race with exponentially distributed processing times. The most recent version of the sample size model assumes that target sensitivity measured by d increases monotonically as a function of exposure duration and decreases as a power function of set size. Here we compare the two models in a new experiment with letters and Gabor patches and with data from five previously published experiments. This was done by applying TVA to the two-alternative forced-choice method (2AFC), which forms the basis of the experimental work on the sample size model. Both models fitted individual participants' proportions of correct trials quite well, and overall the fits by the two models were almost indistinguishable. This was confirmed by formal pairwise comparison of TVA and SSPL by the Akaike information criterion and the Bayesian information criterion measures.
AB - The exponential race model embodied in the theory of visual attention (TVA) and the power law generalization of the sample size model (SSPL) provide competing accounts of the mechanisms that determine how exposure duration, set size, and attention influence how many items enter visual short-term memory (VSTM). In the exponential race model, items compete for entry into VSTM in a processing race with exponentially distributed processing times. The most recent version of the sample size model assumes that target sensitivity measured by d increases monotonically as a function of exposure duration and decreases as a power function of set size. Here we compare the two models in a new experiment with letters and Gabor patches and with data from five previously published experiments. This was done by applying TVA to the two-alternative forced-choice method (2AFC), which forms the basis of the experimental work on the sample size model. Both models fitted individual participants' proportions of correct trials quite well, and overall the fits by the two models were almost indistinguishable. This was confirmed by formal pairwise comparison of TVA and SSPL by the Akaike information criterion and the Bayesian information criterion measures.
KW - Exponential race model
KW - Signal detection
KW - Visual attention
KW - Visual short-term memory
UR - http://www.scopus.com/inward/record.url?scp=85084398837&partnerID=8YFLogxK
U2 - 10.1037/xhp0000738
DO - 10.1037/xhp0000738
M3 - Journal article
C2 - 32271079
AN - SCOPUS:85084398837
VL - 46
SP - 643
EP - 655
JO - Journal of Experimental Psychology: Human Perception and Performance
JF - Journal of Experimental Psychology: Human Perception and Performance
SN - 0096-1523
IS - 6
ER -
ID: 243062059