Contributed Talk Sessions | Poster Sessions | All Posters | Search Papers

Contributed Talk Session: Friday, August 15, 12:00 – 1:00 pm, Room C1.04
Poster Session C: Friday, August 15, 2:00 – 5:00 pm, de Brug & E‑Hall

Encoding of Fixation-Specific Visual Information: No Evidence of Information Carry-Over between Fixations

Carmen Amme¹, Philip Sulewski², Malin Braatz¹, Peter König¹, Tim C Kietzmann¹; ¹Universität Osnabrück, ²Institute of Cognitive Science, Osnabrück University, Universität Osnabrück

Presenter: Carmen Amme

Humans make multiple eye movements each second to sample visual information from different locations in space. This information is integrated to form a single, coherent percept. Here, we investigate whether fixation-specific visual information is encoded in the corresponding neural data, and whether this information is carried over to the subsequent fixation. We successfully encoded fixation-specific neural responses using deep neural network features extracted from fixation patches, with encoding performance peaking at around 125 ms after fixation onset in occipital sensors. Encoding in source space revealed a peak encoding performance along the left dorsal visual path at 100 ms. Incorporating model representations from both the previous and current fixation patches did not improve encoding performance, suggesting no carry-over of visual information between fixations. By demonstrating the feasibility of encoding naturalistic stimulus features during active vision in humans, we open new avenues for investigating how the brain constructs coherent percepts despite processing visual information in discrete, fixation-specific fragments.

Topic Area: Object Recognition & Visual Attention

Extended Abstract: Full Text PDF