National Science Centre HARMONIA Research Project (2014-2016)

"Time-of-day impact on neural mechanism of short-term memory distortions elicited by lexical and spatial interferences - fMRI study"

National Science Centre Research Project registered as 2013/08/M/HS6/00042

Coordinator: Magdalena Fąfrowicz


The goal of the project is to investigate time-of-day effect on neural mechanisms underlying false memories formation in short-term memory,  taking into account the differences resulting from the type of encoded stimuli.

False memories are understood in terms of mistakenly recalling and recognizing stimuli, that were not presented during the memorizing phase of a task. Experimental material will vary due to encoding format (verbal, visuospatial). The first one will provide words as a stimuli (with semantical or phonological similarity), the second one - objects in space (with similar shape/construction principle) or location. In order to verify circadian impact on false memories formation in short-term/working memory, experimental tasks will be performed by extreme morning and extreme evening participants at two times of day – in the morning and in the evening. During the encoding and retrieval phase of each type of tasks data on brain activations will be collected using fMRI.

The results of research will expand the knowledge in the field of neuroscience related to the distortions in short-term memory, will help to understand the human thought process and learning, and skill gaining abilities.

The project is implemented in cooperation with prof. Patricia Reuter-Lorenz, University of Michigan.