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Linearization of the Bradford Protein Assay

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The Bransford-Franks linear effect: Integration or artifact?

S Katz¹, B Atkeson, J Lee

¹University of Georgia, 30602, Athens, Georgia.

Memory & Cognition

|November 9, 2013

Summary

The Bransford-Franks linear effect may be a presentation artifact, not a semantic process. Presenting sentence ideas individually, rather than overlapping, increased recognition confidence, supporting this artifact interpretation.

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Area of Science:

Cognitive Psychology
Memory Research

Background:

The Bransford-Franks linear effect suggests semantic processing influences sentence recognition.
Previous research often presented stimulus sentences with overlapping idea combinations.

Purpose of the Study:

To investigate if the Bransford-Franks linear effect is a methodological artifact.
To determine if the effect is independent of semantic processing.

Main Methods:

Participants received sentences with identical information presented in two ways: overlapping idea combinations (control) or one idea at a time (experimental).
Recognition confidence ratings were collected for all participants.

Main Results:

Sentences with single ideas presented individually yielded significantly higher recognition confidence ratings.
This outcome supports the interpretation that the effect is an artifact of presentation method.

Conclusions:

The Bransford-Franks linear effect appears to be an artifact of how stimulus sentences are presented.
Recognition confidence may be influenced by the perceived probability of sentence idea occurrence during acquisition.