Based on the Spatio-temporal Coding Characteristics of Frontotemporal Network, This Paper Explores the Mechanism of Five-tone Speech Training in Reshaping Language Fluency Function.

Boston Diagnostic Aphasia Examination，BDAE

BDAE Aphasia Severity Grading Scale ranges from 0 to 5, with higher grades indicating better language ability. Grading and Language Performance Grade 0: No meaningful speech; no auditory comprehension. Grade 1: Discontinuous speech in communication, but mostly requiring listeners to infer, ask questions, and guess; limited scope of communicable information; listeners find verbal communication difficult. Level 2: With listener assistance, conversation on familiar topics may be possible. However, expressing thoughts on unfamiliar subjects is often impossible, causing difficulty for both patient and examiner. Level 3: With minimal or no assistance, the patient can discuss nearly all everyday matters. Yet, due to diminished verbal and/or comprehension abilities, certain conversations prove difficult or unlikely. Level 4: Speech is fluent, though perceptible comprehension difficulties may be noted. Thought and verbal expression remain largely unrestricted. Level 5: Minimal discernible spee

Time frame: Baseline and Week 4 post-intervention

Minimum Mental State Examination

MMSE total score: 30 points 1. Cognitive impairment: Maximum score 30 points; scores 27-30 indicate normal cognition, while scores \<27 indicate cognitive impairment. 2. Dementia classification criteria: Illiterate ≤ 17 points Primary education ≤ 20 points Secondary education (including technical secondary) ≤ 22 points Tertiary education (including college) ≤ 23 points 3. Dementia severity grading: Mild: MMSE ≥ 21 points Moderate: MMSE 10-20 points Severe: MMSE ≤ 9 points The Mini-Mental State Examination assesses cognitive function. The scale ranges from 0 to 30 points, with higher scores indicating better cognitive function.

Time frame: Baseline and Week 4 post-intervention

Western Aphasia Battery，WAB

The Western Aphasia Battery Aphasia Quotient (AQ) is calculated from four component scores: spontaneous speech, auditory comprehension, repetition, and naming, with a maximum total of 100 points. An AQ score below 93.8 indicates diagnostic aphasia. The assessment comprises four major components: spontaneous speech (20 points total, divided into information content 10 points and flow 10 points), listening comprehension (10 points), repetition (10 points), and naming (10 points). The Aphasia Quotient (AQ) is then calculated. A higher Aphasia Quotient indicates better language ability.

Time frame: Baseline and Week 4 post-intervention

Chinese Functional Communication Profile, CFCP

Scale Name: Functional Language Communication Ability Assessment Scale Score Range: 0 to 100 points Score Interpretation: Higher scores indicate better functional communication abiity. 'The Functional Language Communication Ability Assessment Scale evaluates patients' practical communication skills in everyday life situations. The scale's total score ranges from 0 to 100 points, with higher scores representing superior functional communication ability.'

Time frame: Baseline and Week 4 post-intervention