RT Journal Article
SR Electronic
T1 Human shape representations are not an emergent property of learning to classify objects
JF bioRxiv
FD Cold Spring Harbor Laboratory
SP 2021.12.14.472546
DO 10.1101/2021.12.14.472546
A1 Malhotra, Gaurav
A1 Dujmović, Marin
A1 Hummel, John
A1 Bowers, Jeffrey S
YR 2022
UL http://biorxiv.org/content/early/2022/08/22/2021.12.14.472546.abstract
AB Humans are particularly sensitive to changes in the relationships between parts of objects. It remains unclear why this is. One hypothesis is that relational features are highly diagnostic of object categories and emerge as a result of learning to classify objects. We tested this by analysing the internal representations of supervised convolutional neural networks (CNNs) trained to classify large sets of objects. We found that CNNs do not show the same sensitivity to relational changes as previously observed for human participants. Furthermore, when we precisely controlled the deformations to objects, human behaviour was best predicted by the amount of relational changes while CNNs were equally sensitive to all changes. Even changing the statistics of the learning environment by making relations uniquely diagnostic did not make networks more sensitive to relations in general. Our results show that learning to classify objects is not sufficient for the emergence of human shape representations.Competing Interest StatementThe authors have declared no competing interest.