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Language and Cognition

Language and Cognition

Language serves as a bridge between ideas and communication, influencing how individuals perceive and interact with the world. Psychologists have long debated whether language shapes thought or vice versa. This discussion gained grip with Edward Sapir and Benjamin Lee Whorf in the 1940s, who proposed that language determines thought, a concept known as linguistic determinism. They suggested that the vocabulary and structure of a language influence how its speakers think and perceive reality.

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Disassembling an experimental artifact in aphasia: Why phonemic errors with words and semantic errors with numbers?

Ismael Gutiérrez-Cordero¹, Javier García-Orza²

¹Cognitive Neurology and Aphasia Unit, Centro de Investigaciones Médico-Sanitarias (CIMES), Universidad de Málaga, Spain; Numerical Cognition Lab, Universidad de Málaga, Spain; Department of Basic Psychology, Universidad de Málaga, Spain.

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Summary

The Stimulus Type Effect on Phonological and Semantic errors (STEPS) phenomenon in aphasia may be an artifact. Careful control of experimental conditions, like memory load and word frequency, is crucial for understanding speech errors.

Keywords:

Conduction aphasia Numbers Phonemic errors Semantic errors Word production

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Area of Science:

Neuroscience
Psycholinguistics
Speech-Language Pathology

Background:

Speech errors in aphasia are significant for diagnosis and understanding cognitive-linguistic processes.
The Stimulus Type Effect on Phonological and Semantic errors (STEPS) challenges existing views by suggesting different error types for words versus numbers.

Observation:

Two studies investigated whether STEPS is an artifact of experimental design, focusing on memory load and material control.
Participants with conduction aphasia repeated word pairs and color sequences, compared to multi-digit number production.

Findings:

High-frequency words and numbers produced primarily semantic errors, while low-frequency words showed mixed phonemic and semantic errors.
The STEPS phenomenon appears to be an artifact of high memory load, semantically-related high-frequency words, and cyclic production.

Implications:

Findings suggest a need for rigorous control in studies of aphasia speech errors.
This research refines language production models and deepens understanding of neurocognitive processes underlying speech errors in aphasia.