Dr. Doris Johnson and Dr. Helmer Myklebust classified dyslexia into which two types?

Dr. Doris Johnson and Dr. Helmer Myklebust contributed significantly to the understanding of dyslexia, particularly in classifying its different types. One of the classifications they proposed is based on the sensory modalities involved in processing information—specifically, visual and auditory.

The visual type of dyslexia refers to difficulties in processing visual information and recognizing printed words, which may manifest as challenges in letter and word recognition. In contrast, the auditory type emphasizes issues related to the sound processing of language, particularly phonemic awareness, which is critical for decoding and spelling words. This classification allows educators and therapists to tailor interventions that address the specific needs of individuals based on their primary difficulties, leading to more effective literacy instruction.

Other classifications, like phonetic and semantic, focus more on the linguistic aspects of dyslexia, while conventional and unconventional would pertain to different types of reading strategies or approaches, which are not the primary focus of Johnson and Myklebust's classification. Comprehensive and analytical, on the other hand, would suggest broader cognitive strategies rather than the specific sensory-oriented breakdown that Johnson and Myklebust utilized.