Serial dependence carries the action that produced the previous report
- 1Neuro-Cognitive Psychology, Department of Psychology, LMU Munich
Abstract
Serial dependence pulls current judgments toward the recent past, but what is carried forward is debated: the previous stimulus, the previous decision, or something about the report itself. Three magnitude-reproduction experiments separated these sources. Participants viewed dot arrays that varied independently in duration and numerosity, then reproduced the cued dimension by holding a key while a display accumulated, so that both magnitudes were produced through the same action. A response-history model partitioned the attraction into previous-stimulus and previous-response paths. The previous response predicted cross-dimensional attraction after controlling for the previous and current stimuli: a numerosity report biased the next duration judgment and vice versa (Experiment 1), also when each task used its own response key (Experiment 2). A task switch weakened this carryover without abolishing it. Experiment 3 randomized, trial by trial, whether a reported number required a long or a short key hold. The influence of a previous number on the next duration judgment changed with this mapping, showing that reported value alone did not account for carryover. Conventional stimulus-based measures showed none of this cross-task history. Serial dependence can therefore carry the trace of the action through which a previous judgment was expressed, bounded but not gated by task context.
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BibTeX
@misc{qu2026serial,
title = {{Serial dependence carries the action that produced the previous report}},
author = {C. Qu and C. Naeve and Z. Shi},
howpublished = {bioRxiv},
year = {2026},
month = oct,
doi = {10.64898/2026.10.27.762257},
url = {https://www.biorxiv.org/content/10.64898/2026.10.27.762257v1},
note = {CC BY},
}
RIS
TY - UNPB
TI - Serial dependence carries the action that produced the previous report
AU - C. Qu
AU - C. Naeve
AU - Z. Shi
PY - 2026
DA - 2026/10/27
PB - bioRxiv
DO - 10.64898/2026.10.27.762257
UR - https://www.biorxiv.org/content/10.64898/2026.10.27.762257v1
AB - Serial dependence pulls current judgments toward the recent past, but what is carried forward is debated: the previous stimulus, the previous decision, or something about the report itself. Three magnitude-reproduction experiments separated these sources. Participants viewed dot arrays that varied independently in duration and numerosity, then reproduced the cued dimension by holding a key while a display accumulated, so that both magnitudes were produced through the same action. A response-history model partitioned the attraction into previous-stimulus and previous-response paths. The previous response predicted cross-dimensional attraction after controlling for the previous and current stimuli: a numerosity report biased the next duration judgment and vice versa (Experiment 1), also when each task used its own response key (Experiment 2). A task switch weakened this carryover without abolishing it. Experiment 3 randomized, trial by trial, whether a reported number required a long or a short key hold. The influence of a previous number on the next duration judgment changed with this mapping, showing that reported value alone did not account for carryover. Conventional stimulus-based measures showed none of this cross-task history. Serial dependence can therefore carry the trace of the action through which a previous judgment was expressed, bounded but not gated by task context.
ER -