split_morphology_usage.jpg
This image displays a diagram comparing three different linguistic models or hypotheses for how the brain processes language. The diagram is organized into three vertical columns, each representing a different hypothesis. All three columns start with the same input sentence and end with the same phonetic output, but they differ in the steps taken to get there.

The background is white. The text is black. There are light purple rectangular boxes with rounded corners containing the processing steps. Black arrows point downwards from one box to the next within each column.

Here is a detailed breakdown of each column from left to right:

**Column 1: Split-Morphology Hypothesis**
*   **Title:** At the top, the text reads "Split-Morphology Hypothesis".
*   **Input Sentence:** Below the title, in quotes, is the sentence "John redirected traffic".
*   **Step 1 (Box):** The first box is labeled "Morphological Processing (Derivation)". Inside, it breaks down the word as "re + direct".
*   **Arrow:** Points down to the next box.
*   **Step 2 (Box):** This box is labeled "Syntactic Processing". The text inside reads "Orders Words; Assigns 3SG.PAST to V" (referring to assigning third-person singular past tense to a verb).
*   **Arrow:** Points down to the next box.
*   **Step 3 (Box):** This box is labeled "Morphological Processing (Inflection)". The text inside reads "redirect + d".
*   **Arrow:** Points down to the final processing step.
*   **Step 4 (Box):** This box is labeled "Phonological Processing". It contains a phonological rule: "/d/ -> [ɪd] / [+cor]_". This indicates that the sound 'd' changes to the sound 'id' under certain conditions involving coronal consonants.
*   **Arrow:** Points down to the final result.
*   **Final Output:** At the very bottom is a phonetic transcription in brackets: `[rɪdəˈrɛktɪd]`.

**Column 2: Single Component Hypothesis**
*   **Title:** At the top, the text reads "Single Component Hypothesis".
*   **Input Sentence:** Below the title, in quotes, is the sentence "John redirected traffic".
*   **Step 1 (Box):** The first box is labeled "Morphological Processing". Inside, it combines all parts: "re + direct + d". Unlike the first column, derivation and inflection are not separated.
*   **Arrow:** Points down to the next box.
*   **Step 2 (Box):** This box is labeled "Syntactic Processing". The text inside reads "Orders Words". It does not mention assigning tense here.
*   **Arrow:** Points down to the final processing step.
*   **Step 3 (Box):** This box is labeled "Phonological Processing". It contains the same rule as the first column: "/d/ -> [ɪd] / [+cor]_".
*   **Arrow:** Points down to the final result.
*   **Final Output:** At the very bottom is the phonetic transcription: `[rɪdəˈrɛktɪd]`.

**Column 3: Whole-Word approach**
*   **Title:** At the top, the text reads "Whole-Word approach".
*   **Input Sentence:** Below the title, in quotes, is the sentence "John redirected traffic".
*   **Step 1 (Box):** The first box is labeled "Syntactic Processing". The text inside reads "Requests/Orders Words". In this model, syntax comes before lexical retrieval.
*   **Arrow:** Points down to the next box.
*   **Step 2 (Box):** This box is labeled "Lexical Retrieval". Inside, it shows the whole word in single quotes: 'redirected'. This suggests the brain retrieves the entire word as a unit rather than building it from parts.
*   **Arrow:** Points down to the final result.
*   **Final Output:** At the very bottom is the phonetic transcription: `[rɪdəˈrɛktɪd]`.
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