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Examining the Characteristics of Episodic Memory using Event-related Potentials in Patients with Alzheimer's Disease

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Attribute amnesia as a product of experience-dependent encoding.

Niya Yan¹, Brian A Anderson²

¹Department of Psychological and Brain Sciences, Texas A&M University, 4235 TAMU, College Station, TX, 77843-4235, USA. yanniya@tamu.edu.

Psychonomic Bulletin & Review

|September 15, 2023

Summary

This summary is machine-generated.

Response history shapes working memory, influencing attribute amnesia. Early and intermittent identity probes protected against memory failure, suggesting task experience overrides initial instructions.

Keywords:

Encoding Expectation Response history Working memory

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Area of Science:

Cognitive Psychology
Neuroscience
Human Memory

Background:

Attribute amnesia demonstrates how expectations influence memory for attended information.
Understanding expectation formation is key to explaining attribute amnesia.

Purpose of the Study:

To investigate how response history shapes expectation.
To determine if task experience, independent of instructions, can drive or eliminate attribute amnesia.

Main Methods:

Participants completed variations of the attribute amnesia task with different identity probe histories.
Three groups received different patterns of identity probes before a critical identity probe.
Task instructions initially required encoding of both target location and identity.

Main Results:

Performance on the critical trial was strongly dependent on response history.
Initial identity probes offered partial protection against attribute amnesia.
Intermittent identity probes completely eliminated attribute amnesia.

Conclusions:

Task experience, not just instructions, determines information encoding into working memory.
Response history plays a crucial role in modulating attribute amnesia.
Expectations are dynamically shaped by ongoing task interactions.