Prior Expectations Bias Confidence Judgments Through Parietal Alpha‐Band Modulation
Luca Tarasi, Anna Pasini, Domenico Romanazzi, Margherita Covelli, Vincenzo Romei · 2026
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Description
Luca Tarasi and co-authors show that prior expectations bias confidence through a brain rhythm in 2026. People judge how likely their own choices are right. Whether prior hints shape that self rating was unclear. In one study, seventy five people did a visual task with cues that hinted at target odds.
Confidence rose when answers matched the cue and fell when they clashed. Raw sensitivity to one's own errors stayed flat. A scalp signal over the right parietal area tracked the bias size per person. In a second study, brain stimulation cut that rhythm and the bias shrank with it. The authors call the rhythm a causal lever on self judgment.
Catalog record
| CREATOR | Luca Tarasi, Anna Pasini, Domenico Romanazzi, Margherita Covelli, Vincenzo Romei |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 84 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |