Perceptual and conceptual influences on memory judgments.

Area of Science:

• Cognitive Psychology
• Neuroscience
• Computational Vision

Background:

• Memory representations encompass both perceptual and conceptual features.
• Prior research indicates independent representation of these features in memory.
• Recognition decisions are thought to rely primarily on conceptual features.

Purpose of the Study:

• To investigate the influence of perceptual and conceptual features on memory processing stages beyond recognition.
• To examine potential interactions between perceptual and conceptual representations during memory judgments.
• To test how these feature types affect evidence accumulation, recognition accuracy, and memory quality evaluations.

Main Methods:

• Conducted forced-choice memory tests with image encoding and discrimination tasks.
• Utilized computational vision models to quantify perceptual and conceptual similarity between targets and lures.
• Analyzed effects on evidence accumulation, recognition accuracy, and retrieval strategies across three experiments with varying sample sizes.

Main Results:

• Both perceptual and conceptual similarity impaired evidence accumulation.
• Conceptual similarity alone decreased recognition accuracy.
• High perceptual similarity diminished the negative impact of conceptual similarity on recognition, linked to increased reliance on detailed retrieval.

Conclusions:

• Memory judgments involve multiple processing stages influenced by both feature types.
• Perceptual and conceptual features interact, with perceptual similarity modulating the effect of conceptual similarity on recognition.
• These findings highlight the dynamic interplay of feature representations in memory recall and retrieval strategies.