Spatial thinking from a different view: Disentangling top-down and bottom-up processes using eye tracking

Abstract The goal of the present study was to investigate the potential of gaze fixation patterns to reflect cognitive processing steps during test performance. Gaze movements, however, can reflect top-down and bottom-up processes. Top-down processes are the cognitive processing steps that are necessary to solve a certain test item. In contrast, bottom-up processes may be provoked by varying visual features that are not related to the item solution. To disentangle top-down and bottom-up processes in the context of spatial thinking, a new test (R-Cube-Vis Test) was developed and validated explicitly for the usage of eye tracking in three studies as long and short version. The R-Cube-Vis Test measures visualization and is conform to the linear logistic test model with six difficulty levels. All items of one level demand the same transformation steps to solve an item. The R-Cube-Vis Test was then utilized to investigate different gaze-fixation-based indicators to identify top-down and bottom-up processes. Some of the indicators were also able to predict the correctness of the answer of a single item. Gaze-related measures have a high potential to reveal cognitive processing steps during solving an item of a given difficulty level, if top-down and bottom-up processes can be segregated.