News

Inter-trial effects in visual search

Inter-trial effects in visual search

Featured, Research
Many previous studies on visual search have reported inter-trial effects, that is, observers respond faster when some target property, such as a defining feature or dimension, or the response associated with the target repeats versus changes across consecutive trial episodes. However, what processes drive these inter-trial effects is still controversial. Here, we investigated this question using a combination of Bayesian modeling of belief updating and evidence accumulation modeling in perceptual decision-making. In three visual singleton ('pop-out') search experiments, we explored how the probability of the response-critical states of the search display (e.g., target presence/absence) and the repetition/switch of the target-defining dimension (color/ orientation) affect reaction time distributions. The results replicated the mean reaction time (RT) inter-trial and dimension repetition/switch effects that have been reported in previous studies. Going beyond this,…
Read More
Visual Search and Selective Attention (VSSA IV)

Visual Search and Selective Attention (VSSA IV)

Lab News
A wonderful experience in Visual Search and Selective Attention (VSSA IV), AMMERSEE, MUNICH, GERMANY (13.07 – 16.07.2018) VSSA  is one of the most important International Symposium in the cognitive neuro-sciences. Over the past decades, VSSA has become a core topic in the cognitive neuro-sciences, sparking an abundance of methodological and theoretical advances. In fact, the recent years have seen an exponential increase in published articles with keywords ‘visual search’, ‘visual attention’, and ‘visual working memory’! Thus, while there is a rapidly expanding research output, this engenders a growing need to keep the field together. To contribute to the latter is the main purpose of our symposium series, that is, (i) to bring together a group of world-leading scientists engaged in the field of VSSA, (ii)  who represent different theoretical stances and methodological approaches, (iii) the aim…
Read More
Farewell party

Farewell party

Lab News
"Life is a series of hellos and goodbyes." - Billy Joel It is sad for us that Linda (Xuelian) and Leo are leaving, but it is also a new chapter for Linda and Leo. Good luck with your new job and new career!
Read More

touching

Lab News
In her latest book "Of This World", Stella Pierides, writer and poet, includes a Haibun titled Touching, which was written in response to one of our recent research studies: Watching a real moving object expands tactile duration: the role of task-irrelevant action context for subjective time (Jia, Shi, Zang, & Müller, 2015). This is a new perspective on our scientific research. We reprint her haibun with her kind permission. Enjoy! Touching Imagine your left hand is being made to feel a brief vibration and you're being asked to estimate how long this vibration lasts. In one version of this scenario, you are holding a small ball in both hands; in another, your right hand is free. And in both versions, you see a safely suspended, potentially catchable ball moving towards you. Would…
Read More

Reference Guide: Contextual cueing

Research
This page gathers published work employing the contextual cueing paradigm. The contextual cuing paradigm tests how repeated exposure to target/distractors arrangements affects search, and learned “contexts” lead to improved search efficiency. The contextual cueing paradigm is an important tool for our understanding about roles of environmental regularities, processes involved in learning and retrieving these features in search. Since its debut in 1998 the paradigm has been used in its original and modified forms, combined with brain imaging techniques, used in developmental, patient and animal studies, and also in cross-modal studies. Since our research group (Experimental Psychology at LMU Munich) have been conducting studies employing this paradigm for several years, we have accumulated this list. And why not share it! In addition, we've got inspiration from a similar initiative by the Yale Perception & Cognition Lab. Feel free to inform us about…
Read More

Agile System is online

Lab News
After one year successful lab scrum meeting, we now integrate offline scrum meeting with online system. The system is based on redmine. The new system is fully integrated with Github repository. The new system can be access here.
Read More