Phonological Deficit Hypothesis
The Phonological Deficit Hypothesis is one of the leading theories that attempts to explain Dyslexia. This theory proposes that the difficulty lies in the phonological processing areas of the brain, which are responsible for connecting sounds with meanings and letters. People with dyslexia may have difficulty decoding and understanding spoken language, as well as having difficulties with reading, writing and spelling. This can make it difficult for them to understand instructions in a busy classroom environment. The Phonological Deficit Hypothesis seeks to explain why people with dyslexia have difficulties with these language-based tasks.
Visual Deficit Theory
Dyslexia is often associated with visual deficit theory, which states that individuals with dyslexia may have difficulty processing visual information. This theory suggests that individuals with dyslexia may have difficulty connecting letters and words to images in the brain, which can lead to difficulty reading and writing. Studies have suggested that visual processing can be impaired in individuals with dyslexia, making it difficult for them to focus on printed material and making it harder for them to interpret text quickly. Additionally, those with dyslexia may struggle to recognize subtle differences between certain letters and words, making it difficult for them to decode words correctly. Although further research is needed to determine if this theory is accurate, visual deficit theory is a potential explanation for the difficulty some individuals have with reading and writing.