Table 1.
Experimental protocol | Clinical exam | ||
---|---|---|---|
Screening | OGTT (low-carb dinner) | OGTT (high-carb diet) | |
Time (min) | Glucose (mg/dL) | ||
0 | 71 | 60 | 71 |
30 | - | 153 | - |
60 | - | 153 | - |
120 | - | 200 | 75 |
180 | - | 152 | - |
During the experimental protocol, single pulse transcranial magnetic stimulation and a working memory task was performed while high-density electroencephalography was recorded at each OGTT time point. The first OGTT was performed after a low-carbohydrate dinner prior to a 12-hour fast before the study. The clinical exam OGTT was performed in a primary care setting after 3 days of >150 g/day carbohydrate ingestion and specifically a high-carbohydrate meal the night prior to the OGTT.
Abbreviations: carb, carbohydrate; OGTT, oral glucose tolerance test.