Constructing calendars in the brain.

Constructing calendars in the brain.
Neurocase. 2019 Nov 24;:1-11
Authors: Ramachandran VS, Chunharas C, Marcus Z
Abstract
By studying an enigmatic condition called, "calendar synesthesia", we explored the elusive boundary between perception, visual imagery, and the manner in which we construct an internal mental calendar by mapping time-sequences onto spatial maps. We use a series of demonstrations to establish that these calendars act more like real objects activating sensory pathways rather than purely abstract symbolic descriptions that bear no resemblance to an actual calendar. We propose that the calendar is enshrined in acircuitry involving the hippocampal place-cells and entorhinal grid-cells, which are connected to the angular gyrus (involved with computing sequences) via the inferior longitudinal fasciculus.
PMID: 31762380 [PubMed - as supplied by publisher]

Source: Neurocase - November 23, 2019 Category: Neurology Authors: Ramachandran VS, Chunharas C, Marcus Z Tags: Neurocase Source Type: research