In defence of high-speed memory scanning

Area of Science:

• Cognitive Psychology
• Neuroscience
• Human Memory

Background:

• The high-speed serial exhaustive scanning (SES) process was proposed in the 1960s to explain how humans search active memory.
• Evidence from reaction time (RT) patterns initially supported SES, but critics later challenged its existence and validity.

Purpose of the Study:

• To review evidence supporting the existence and mechanisms of the SES process in human active memory.
• To address criticisms and counterarguments against the SES model by re-examining experimental data and procedures.

Main Methods:

• Analysis of reaction time (RT) data from studies on active memory interrogation.
• Re-evaluation of original experimental procedures and their impact on RT patterns.
• Review of evidence for and against competing theories of memory search, including those based on 'memory-strength'.
• Presentation of new experimental results and re-analysis of existing data.

Main Results:

• Claims that SES predictions are violated are often based on misinterpretations of experimental variations.
• Original experimental procedures consistently support the SES model.
• Evidence against competing theories, particularly those relying on 'memory-strength', is substantial and often overlooked.
• New analyses and experimental data further bolster the plausibility of the SES model.

Conclusions:

• The high-speed serial exhaustive scanning (SES) process remains a valid model for active memory interrogation.
• Despite its continued relevance, several associated cognitive puzzles warrant further investigation.