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Dissociations between performance and visual fixations after subordinate- and basic-level training with novel

Mina Elhamiasl¹, Gabriella Silva¹, Andrea M Cataldo²

¹Department of Psychology, University of Florida, United States.

Vision Research

|November 26, 2021

Summary

This summary is machine-generated.

Subordinate-level object training enhances perceptual discrimination accuracy for novel objects. However, visual fixation patterns change similarly regardless of training level, suggesting a dissociation between recognition and visual search strategies.

Keywords:

Eye-tracking Perceptual expertise Subordinate-level training Visual fixation strategies

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Area of Science:

Cognitive Psychology
Neuroscience
Visual Perception

Background:

Subordinate-level object training enhances perceptual discrimination more than basic-level training.
The impact of training on visual fixation strategies and feature use remains unclear.

Purpose of the Study:

To investigate how subordinate-level versus basic-level training affects object discrimination.
To examine changes in visual fixation patterns and feature use (color, spatial frequency) post-training.

Main Methods:

Adults (n=24) underwent 6 days of training on novel object families at either subordinate or basic levels.
Discrimination accuracy and visual fixations were measured before and after training.
Image color and spatial frequency were manipulated to assess feature use.

Main Results:

Subordinate-level training significantly improved discrimination accuracy for trained objects, generalizing to untrained exemplars.
Discrimination accuracy did not improve with basic-level training.
Both training types altered visual fixation patterns (increased duration/amplitude, decreased count), but did not affect feature use.

Conclusions:

Subordinate-level training enhances object recognition, while visual search strategies adapt similarly across both training levels.
A dissociation exists between improved discrimination accuracy and changes in visual fixation patterns.