Response bias in numerosity perception at early judgments and systematic underestimation
ATTENTION PERCEPTION & PSYCHOPHYSICS, cilt.84, sa.1, ss.188-204, 2022 (SCI-Expanded)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 84 Sayı: 1
- Basım Tarihi: 2022
- Doi Numarası: 10.3758/s13414-021-02365-3
- Dergi Adı: ATTENTION PERCEPTION & PSYCHOPHYSICS
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED)
- Sayfa Sayıları: ss.188-204
- Anahtar Kelimeler: Numerosity perception, Mental number line, Speed-accuracy trade-off, Response deadline procedure, OVER-ESTIMATION, NUMBER, DISCRIMINATION, REPRESENTATION, LOUDNESS, HUMANS, CODE
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Orta Doğu Teknik Üniversitesi Adresli: Evet
Özet
Mental number representation relies on mapping numerosity based on nonsymbolic stimuli to symbolic magnitudes. It is known that mental number representation builds on a logarithmic scale, and thus numerosity decisions result in underestimation. In the current study, we investigated the temporal dynamics of numerosity perception in four experiments by employing the response-deadline SAT procedure. We presented random number of dots and required participants to make a numerosity judgment by comparing the perceived number of dots to 50. Using temporal dynamics in numerosity perception allowed us to observe a response bias at early decisions and a systematic underestimation at late decisions. In all three experiments, providing feedback diminished the magnitude of underestimation, whereas in Experiment 3 the absence of feedback resulted in greater underestimation errors. These results were in accordance with the findings that suggested feedback is necessary for the calibration of the mental number representation.