... compares to and interacts with the ordinary perception in the view of different modalities. One interesting effect can be reported while performing the following task: call up before your imagination objects and concepts linked to different sense modalities e.g. whistle of a railway for sound, tobacco for smell, silk for touch, fatigue for sensation, etc (these items appeared in Galton's "breakfast-table questionnaire") and consider your mental representation of them. My introspective account is that I can imagine those easier and faster if I have a visual image of some object, place or event before my mind's eye right before I recall the sensation itself (almost simultaneously). The "pictures" appear briefly and are very faint and abstract, probably because characteristics like shape, colour, etc are irrelevant for the task (modalities other than visual). Nonetheless, I am aware of some sort of visualization, as if the compartments in long-term memory where all ...

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