How the size of the to-be-learned material influences the encoding and later retrieval of associative memories: A pupillometric assessment.

ABSTRACT: Pupillometry have recently added valuable insights about the cognitive and possible neurobiological processes underlying episodic memory. Most of the studies, however, investigated recognition memory, which only partially relies on cue-driven recollection, the hallmark feature of episodic memory. Here we measured pupil size during a paired associate learning task, where participants encoded word-pairs, and after a short delay they took part in a cued recall. Importantly, we manipulated the size of the learning set: participants either learnt two, four or eight word-pairs in a row. As expected, increasing set size resulted in larger forgetting, assumingly as a consequence of weaker memory strength for the word-pairs. Our results show an important difference between pupil size changes observ

SUBMITTER: Pajkossy P 

PROVIDER: S-EPMC6938364 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature