The only condition where this applies is in the first panel: training on audiovisual onset TOJs led to better performance on discriminating the order of visual onsets (purple column), although curiously, audiovisual training did not transfer to auditory onset discrimination (second panel).
In the current study, we compare the effect of congruent audiovisual training with that of incongruent audiovisual training.
Here we compared synchronous audiovisual trains to asynchronous trains, while using a behavioral task requiring detection of higher-intensity target events in either modality.
Comparing performance on visual-only trials, we find that training with congruent audiovisual stimuli produces significantly better learning than training with incongruent audiovisual stimuli or with only visual stimuli.
Similarly to performance during training, the congruent audiovisual trained group demonstrates a greater learning effect for the trained compared to untrained directions than the other two groups.
In Figure 2, we show performance for the congruent audiovisual trained group (green), incongruent audiovisual trained group (blue), and the unisensory trained group (red), for visual-only trials (solid lines) and audiovisual trials (dashed lines) across the five days of training.
Improvement after audiovisual training was several times higher than after auditory practice.
If so, special techniques of audiovisual training [12] can be elaborated to improve spatial localization of sounds with one ear.
The first of these concerns the two tests of generalisation following audiovisual training back to unimodal visual and auditory tasks.
Of importance is that such an improvement by audiovisual training can be observed for all the spatial fields in the azimuth.
