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Genome-wide Determination of Mammalian Replication Timing by DNA Content Measurement

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Temporal momentum: an online replication and beyond.

Manuel Vencato¹, Marco Zorzi^1,2, Mario Bonato³

¹Department of General Psychology and Padova Neuroscience Center, University of Padova, Padova, Italy.

Psychological Research

|November 5, 2025

Summary

This summary is machine-generated.

Mental arithmetic affects time perception, with addition lengthening perceived duration and subtraction shortening it. This temporal momentum effect is reliable and occurs regardless of operand order, suggesting shared mechanisms with spatial processing.

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Area of Science:

Cognitive Psychology
Neuroscience
Psychophysics

Background:

Mental arithmetic operations can distort the perception of time.
Temporal momentum, analogous to representational momentum, describes operation-specific time distortions.
Previous research showed addition lengthens and subtraction shortens perceived time durations.

Purpose of the Study:

To replicate and validate the temporal momentum effect using an online data collection procedure.
To investigate if operand order influences the temporal momentum effect in subtraction.
To explore the relationship between temporal and spatial processing in cognitive tasks.

Main Methods:

Direct replication of a temporal arithmetic task using an online time reproduction paradigm.
Experiment 1: Assessed the reliability of temporal momentum via online data collection.
Experiment 2: Manipulated operand order in subtraction to test its influence on temporal momentum.

Main Results:

The temporal momentum effect was reliably replicated using an online procedure, matching previous laboratory findings.
Temporal momentum in subtraction persisted even when operand order was varied.
The results confirmed that temporal momentum is not an artifact of stimulus ordering.

Conclusions:

The temporal momentum effect is a robust phenomenon indexing mental manipulation of time.
Operand order does not account for the time distortions observed in subtraction.
Time perception shares processing features with spatial representation, supporting a unified cognitive architecture.