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Trends Cogn Sci. 2018 Feb;22(2):124-136. doi: 10.1016/j.tics.2017.11.004.

Memory as Perception of the Past: Compressed Time inMind and Brain.

Author information

1
Center for Memory and Brain, Department of Psychologicaland Brain Sciences, Department of Physics, Boston University, Boston, MA, USA. Electronic address: marc777@bu.edu.

Abstract

In the visual system retinal space is compressed such that acuity decreases further from the fovea. Different forms of memory may rely on a compressed representation of time, manifested as decreased accuracy for events that happened further in the past. Neurophysiologically, "time cells" show receptive fields in time. Analogous to the compression of visual space, time cells show less acuity for events further in the past. Behavioral evidence suggests memory can be accessed by scanning a compressed temporal representation, analogous to visual search. This suggests a common computational language for visual attention and memory retrieval. In this view, time functions like a scaffolding that organizes memories in much the same way that retinal space functions like a scaffolding for visual perception.

KEYWORDS:

Memory; Vision; attention; time

PMID:
29389352
PMCID:
PMC5881576
DOI:
10.1016/j.tics.2017.11.004
[Indexed for MEDLINE]
Free PMC Article

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