Nagy M., Arató J. & Fiser J. (2021) Pupil dynamics signals visuo-spatial statistical learning. VSS 2021, Journal of Vision 21 (9), 2005-2005 [Abstract].
Although statistical learning has been established as an important constituent of human implicit sensory learning capacities, the actual process of statistical learning rather than its outcome is largely unexplored due to the lack of appropriate measures. One candidate measure is changes in pupil diameter, which is known to be influenced by past experiences (e.g., violation […]
Fiser J. & Lengyel G. (2018) Task irrelevant statistical regularities modulate perceptual learning in orientation discrimination task. VSS 2018, Journal of Vision 18 (10), 261-261 [Abstract]
Perceptual learning is defined as the ability to improve one’s performance in basic discrimination tasks via extended practice. Is this process influenced by statistical regularities in the scene that have no relation to the discrimination task at hand? Using a 5-day standard perceptual training protocol, we trained two groups of observers to perform an orientation […]
Fiser J., Koblinger A. & Lengyel M. (2015) Modeling information integration in sequential visual decision-making. VSS 2015, Journal of vision 15 (12), 90-90 [Abstract]
Current models of human visual decision making based on sequentially provided samples posit that people make their next decision by unconsciously compensating the statistical discrepancy between measures collected in the long past and those collected very recently. While this proposal is compelling, it does not qualify as a rigorous model of human decision making. In […]
Christensen JH., Lengyel M. & Fiser J. (2014) Factors determining the balance between evidence integration and probabilistic sampling in perceptual decision-making. ECVP 2014, Perception 43, 24-24 [Abstract]
We have reported that contrary to theories of Evidence Integration (EI), time in visual perceptual decision-making is needed not only for accumulating external sensory evidence, but also for collecting samples from static internally represented distributions as it is predicted by the theory of Probabilistic Sampling (PS) (Cosyne 2013; VSS 2013). However, the precise relationship between […]
Popovic M., Van Hooser S. & Fiser J. (2012) Comparing functional measures of maturity in the developing ferret’s primary visual cortex. SFN 2012, New Orleans, LA [Abstract]
Traditional assessments of the development of the visual system typically use change in selectivity to particular features such as orientation or direction to determine the maturity of visual cortical circuits. Directional selectivity tuning (DS) was shown not only to increase rapidly and significantly in the two weeks after eye opening but also to exhibit clear […]
Garber D. & Fiser J. (2021) Pre-Training Leads to a Structural Novelty Effect in Spatial Visual Statistical Learning. CogSci 2021 [Abstract]
We investigated the influence of structural properties of previously learned stimuli on Spatial Visual Statistical Learning. Participants (n=170) were first exposed to a stream of scenes containing only one type of regularity (horizontal or vertical pairs), followed by a stream containing both types of regularities. We found that participants performed above chance for the pairs […]
Reguly H., Nagy M. & Fiser J. (2018) Complex interactions across modalities in audio-visual cross-modal statistical learning. VSS 2018, Journal of Vision 18 (10), 1132-1132 [Abstract]
Statistical learning (SL) within modalities is an area of intensive research, but much less attention has been focused on how SL works across different modalities apart from demonstrating that learning can benefit from information provided in more than one modalities. We investigated visuo-auditory SL using the standard arrangement of SL paradigms. Four visual and four […]
Arató J. & Fiser J. (2015) Information integration in sequential visual decision-making. VSS 2015, Journal of Vision 15 (12), 94-94 [Abstract]
Although it is widely accepted that both summary statistics and salient patterns affect human decision making based on temporally varying visual input, the relative contributions and the exact nature of how these aspects determine human judgment are unclear and controversial, often discussed under the labels of priming, adaptation, or serial effects. To tease apart the […]
Jellinek S. & Fiser J. (2014) Alpha ERD reflects learning and uncertainty during the acquisition of novel categories. ECVP 2014, Perception 43, 54-54 [Abstract]
How are the learning process of a novel category and uncertainty about the category reflected in the alpha-band suppression of the brain? We built an experimental procedure on the oddball paradigm frequently used to investigate the nature of category representations in humans, but contrary to similar studies, we used a continuous stimulus dimension and recorded […]
Stanciu O. & Fiser J. (2021) Do humans recalibrate the confidence of advisers? CogSci 2021 [Abstract]
In collaborative tasks, humans can make better joint decisions by aggregating individual information in proportion to their communicated confidence (Bahrami et al., 2010). However, if people blindly rely on their partner’s confidence expressions, they could easily reach suboptimal solutions when their collaborator’s confidence judgments are not calibrated to their performance, but for instance exhibit an […]