# The Rapid Synthesis of Integral Stimuli

## TL;DR

The study shows that people can quickly process complex stimuli like colors, challenging the idea that such processing is slow and requires training.

## Contribution

The paper provides empirical support for the idea that integral stimuli are rapidly synthesized rather than slowly analyzed.

## Key findings

- Single-dimension classification increases with shorter stimulus presentation times.
- Results support Combination Theory over the classical holistic-to-analytic account.
- Integral stimuli are synthesized quickly rather than analyzed slowly.

## Abstract

Integral stimuli (e.g., colors varying in saturation and brightness) are classically considered to be processed holistically (i.e., as undifferentiated stimulus wholes); people analyze such stimuli into their consistent dimensions only with substantial time, effort, training, or instruction (Foard & Kemler, 1984). In contrast, Combination Theory (Wills et al., 2015) argues that the dimensions of integral stimuli are quickly combined. Through an investigation of the effects of stimulus presentation time, we support Combination Theory over the classical holistic-to-analytic account. Specifically, using colored squares varying in saturation and brightness, we demonstrate that the prevalence of single-dimension classification increases as stimulus presentation time is reduced. We conclude that integral stimuli are not slowly analyzed, they are quickly synthesized.