Incidental encoding task (Posner Cueing Paradigm)

Subjects were scanned while incidentally encoding a series of visually presented real objects and greebles (meaningless objects) in a variant of the Posner cueing paradigm. Subjects covertly shifted their attention to the left or right of fixation, as cued by a centrally-presented arrow prior to item onset, and made a real object versus greeble judgment about the stimulus appearing in the cued or uncued location. Items appeared in the uncued location with a probability of .18. Subjects performed an unscanned memory test following encoding, in which they indicated their memory for old and new real objects using the following four responses: high confident old, low confident old, low confident new, high confident new. For trials in which subjects responded with one of the two old responses, a source memory judgment about the location (left or right side of the screen) of the object at study followed the recognition judgment.


001 Incidental encoding task


  • Anthony D. Wagner
  • J. Benjamin Hutchinson
  • Melina R. Uncapher

Acknowledgements and Funding:

This research was supported by National Institute of Mental Health Grants 5R01-MH080309 and F32-MH084475.

External Publication Links:

Dissociable effects of top-down and bottom-up attention during episodic encoding

Sample Size:


Scanner Type:

3 T Signa MR scanner



Accession Number:


How to cite this dataset:

In addition to any citation requirements in the dataset summary please use the following to cite this dataset:

This data was obtained from the OpenfMRI database. Its accession number is ds000110



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Revision: 2.0.1 Date Set: Oct. 28, 2016, 6:43 p.m.


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Revision: 2.0.0 Date Set: Oct. 7, 2016, 6:21 p.m.


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Revision: 1.0.0 Date Set: April 16, 2013, midnight


- Initial release