Classifying by dimensions and reading: a comparison of the auditory and visual modalities

Area of Science:

• Cognitive Psychology
• Developmental Psychology
• Educational Psychology

Background:

• Children's reading acquisition is hindered by difficulties in phonemic segmentation.
• Young children also exhibit challenges in attending to individual features of visual stimuli.
• Early reading difficulties may indicate a broader deficit in selective attention to perceptual components.

Purpose of the Study:

• To investigate the relationship between phonemic segmentation, visual attention, and reading/spelling abilities in children.
• To determine if the ability to identify common parts in auditory and visual stimuli is a general cognitive skill or specific to language.

Main Methods:

• Children (K-4th grade) and adults classified triads of spoken syllables and visual objects.
• Classification tasks varied in instructions, focusing on shared constituents or free classification.
• Correlations were analyzed between classification performance and standardized reading/spelling measures.

Main Results:

• Classifying speech by common parts correlated positively with reading and spelling ability.
• Classifying visual stimuli by common parts generally did not correlate with reading and spelling skills.
• Task performance became more consistent across modalities when participants were instructed to focus on shared constituents.

Conclusions:

• Phonemic segmentation appears to be a specialized skill, potentially developed through specific language experiences like learning to read.
• The ability to attend to phonemes is distinct from general visual attention skills.
• Learning an alphabetic writing system may be crucial for developing phonemic awareness.