The Forward Testing Effect is Immune to Acute Psychosocial Encoding/Retrieval Stress

Area of Science:

• Cognitive psychology
• Neuroscience
• Stress research

Background:

• The forward testing effect (FTE) is a well-established memory enhancement phenomenon.
• Prior research confirms the FTE's robustness across diverse materials and populations.
• The current study investigates the FTE's resilience under acute psychosocial stress conditions.

Purpose of the Study:

• To determine if the forward testing effect persists under acute psychosocial stress.
• To examine the impact of stress induction on memory recall and the FTE.
• To measure physiological and subjective stress responses during memory encoding and retrieval tasks.

Main Methods:

• Participants were assigned to either a testing or restudy condition for initial learning phases.
• Acute psychosocial stress was induced using the Trier social stress test for groups protocol.
• Salivary cortisol, alpha amylase, and subjective stress levels were monitored throughout the experiment.

Main Results:

• A significant forward testing effect was observed, with prior testing enhancing recall of subsequent information.
• No significant interaction between stress induction and the forward testing effect was found.
• Stress manipulation effectively elicited biopsychological stress responses, validating the stress induction protocol.

Conclusions:

• The forward testing effect is robust and not significantly impaired by acute psychosocial stress.
• Memory benefits from prior testing are resilient to encoding and retrieval under stress.
• Future research should explore moderating factors and long-term effects of stress on the FTE.