English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
 
 
DownloadE-Mail
  Effects of prototype abstraction on pattern completion and inference in concept space

Schäfer, T., Schulz, E., Theves, S., & Doeller, C. (2021). Effects of prototype abstraction on pattern completion and inference in concept space. Poster presented at 50th Annual Meeting of the Society for Neuroscience (Neuroscience 2021).

Item is

Files

show Files

Locators

show
hide
Description:
-
OA-Status:

Creators

show
hide
 Creators:
Schäfer, TAJ, Author
Schulz, E1, 2, Author           
Theves, S, Author
Doeller, CF, Author
Affiliations:
1Research Group Computational Principles of Intelligence, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_3189356              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

Content

show
hide
Free keywords: -
 Abstract: Processing of complex environments is greatly facilitated by the formation and use of concepts. Concepts represent combinations of features shared by similar entities and allow generalisation from limited experience to novel situations. Recent research suggests that concept formation is supported by cognitive maps within the hippocampal-entorhinal system that encode multiple relationships between experiences in a common representational format for flexible access. In a behavioral and functional magnetic resonance imaging experiment, we investigate if this map-like representation of concepts supports the retrieval of abstracted information to guide inference. In a novel behavioral paradigm, participants are first trained to categorize a set of exemplars based on the ratio of their two features. Subsequently, they encounter exemplars that exhibit only one of the features and are instructed to complete the missing feature according to their category label. Here we find that feature inferences are attracted more towards the category center (i.e. prototype) than to the nearest experienced exemplars, suggesting the retrieval of an abstract representation. In an ongoing functional magnetic resonance imaging study, we examine to what degree the hippocampal system, in concert with visual areas, represents prototypes for feature inference. By decoding the inferred features and feature-combinations from brain patterns, we will test if each category’s unseen prototype is formed during categorization and allows feature inference. This project can help us to understand the relationship between abstract representations and cognitive maps and the role of pattern completion in concept formation.

Details

show
hide
Language(s):
 Dates: 2021-11
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: -
 Degree: -

Event

show
hide
Title: 50th Annual Meeting of the Society for Neuroscience (Neuroscience 2021)
Place of Event: -
Start-/End Date: 2021-11-08 - 2021-11-11

Legal Case

show

Project information

show

Source 1

show
hide
Title: 50th Annual Meeting of the Society for Neuroscience (Neuroscience 2021)
Source Genre: Proceedings
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: - Sequence Number: P878.02 Start / End Page: - Identifier: -