Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2021 Nov 2;11:21429. doi: 10.1038/s41598-021-00864-9

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

PMC Copyright notice

Sammon mapping projections of HC model subfield representations. Two-dimensional projections for stimulus representations within each subfield (columns) in the early (top) and delayed (bottom) sequences. Representations from tests at various time points throughout learning (early: trial 12, 36, 48, 72, 96, 120, 144; delayed: trial 24, 48, 60, 72, 84, 96, 120, 144) are depicted within the same plot with increasing opacity for later time points. The model clearly represents the space well after a limited number of trials. Category coding was apparent across subfields and sequences with category A stimuli (circles) on the left of the primary dimension and B stimuli (squares) on the right. Although stimulus locations were fairly consistent across subfields, a large shift was observed for exception B (orange square) across learning trials in the delayed condition. This shift was not observed for exception A.