Differentiating between integration and non-integration strategies in perceptual decision making
perceptual decisions
Male
0301 basic medicine
QH301-705.5
Science
evidence accumulation
Decision Making
Motion Perception
decision making
neuroscience
Motion
03 medical and health sciences
Discrimination, Psychological
Clinical Research
Behavioral and Social Science
Discrimination
Humans
human
Biology (General)
0303 health sciences
Q
Neurosciences
R
Brain
Brain Disorders
behavioral modeling
Psychological
Medicine
Female
Biochemistry and Cell Biology
Neuroscience
DOI:
10.7554/elife.55365
Publication Date:
2020-04-27T17:01:00Z
AUTHORS (4)
ABSTRACT
Many tasks used to study decision-making encourage subjects to integrate evidence over time. Such tasks are useful to understand how the brain operates on multiple samples of information over prolonged timescales, but only if subjects actually integrate evidence to form their decisions. We explored the behavioral observations that corroborate evidence-integration in a number of task-designs. Several commonly accepted signs of integration were also predicted by non-integration strategies. Furthermore, an integration model could fit data generated by non-integration models. We identified the features of non-integration models that allowed them to mimic integration and used these insights to design a motion discrimination task that disentangled the models. In human subjects performing the task, we falsified a non-integration strategy in each and confirmed prolonged integration in all but one subject. The findings illustrate the difficulty of identifying a decision-maker’s strategy and support solutions to achieve this goal.
SUPPLEMENTAL MATERIAL
Coming soon ....
REFERENCES (67)
CITATIONS (70)
EXTERNAL LINKS
PlumX Metrics
RECOMMENDATIONS
FAIR ASSESSMENT
Coming soon ....
JUPYTER LAB
Coming soon ....