Richardson: In Defense of the Imagism of Traditional Psychology
The philosophic interest in classification is that it provides a basis for phenomenological description and philosophic distinctions using an agreed-upon terminology. Classification serves to identify the topic of philosophic inquiry. This exercise shifts the focus of our inquiry into the nature of imagery away from models of explanation based on unknown mechanisms and toward description of the phenomena.
Richardson suggested that the principal problem in determining the role of imagery was the problem of measuring imagery. His understanding of measurement for psychological entities is entirely different from Kosslyn's. Richardson accepted the reports of imagery given by subjects at their face value. The problem of measuring imagery is primarily one making sure subjects understand what they are being asked to report. Interview techniques and questionnaires about imagery have been used in psychology at least since Galton (1883) to establish meaningful scales of imagery vividness and imagery control. (Richardson, 1969, p. 91-92, 148-156). The Betts QMI scale of imagery vividness, which was used in many studies, is an excellent example how subjective responses are used to define the nature of imagery as it was understood by the tradition of psychology addressed by Richardson. Subjects are asked to rate their subjective experience of imagining a friend, or a sunset, or of running upstairs, or (aural image) hearing the whistle of a locomotive against the following scale:
1. Perfectly clear and as vivid as the actual experience.
2. Very clear and comparable in vividness to the actual
experience.
3. Moderately clear and vivid.
4. Not clear or vivid, but recognizable.
5. Vague and dim.
6. So vague and dim as to be hardly discernible.
7. No image present at all, you only 'knowing' that you are
thinking of the object.
Unlike the computational view, in which images are conceived of as either operating or not, this scale implies that the operating modes of imagery are continuous rather than discrete. Thus, although imagery can be measured, after a fashion, according to traditional psychology, a set of absolutely and objectively quantifyable attributes of imagery is an unlikely prospect. Another reason Richardson had for skepticism about turning the study of imagery into a precise science, is that, as traditionalists since James have pointed out, there may not be a universal form of human cognition. Evidently, there are habitual visualizers and habitual verbalizers, people who encode their experience in terms of images and those who encode their experiences in terms of words. An attempt, therefore, to discover the workings of the human mind, abstractly conceived as being fundamentally universal in its structure and operation may be entirely misguided.