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Interpretation of biological motion with young with cerebral palsy
Agnieszka Maryniak1, Małgorzata Foryś-Basiejko1
1Faculty of Psychology, University of Warsaw, Poland.
Background:
Understanding the difference between the motion of animate and inanimate objects and biological motion perception and interpretation are some of animals' most essential survival abilities. These abilities have significant implications for everyday functioning, adaptive social behavior, and nonverbal communication.
Aim:
Our study was designed to answer the following question: Do individuals with significant motor disabilities since birth perceive and interpret the movements of others in the same way as those with typical movement experiences? This question prompts a follow-up inquiry: whether one's own movement experiences influence biological motion perception.
Methods And Procedure:
We tested a clinical group of 30 adolescents and young adults aged 14-26 with cerebral palsy and a control group of 30 healthy individuals of the same age. The qualification criteria were normal intellectual development, implementation of a typical educational program, and no significant sensory or speech impairments. We used 11 films from the Communicative Interaction Database, employing the point-light method conventionally used for studying biological motion perception. The recognition of the movement character of the presented non-communicative (NC) figures and the interpretations of the communicative gestures (CG) were assessed.
Results:
Participants with cerebral palsy achieved significantly worse results in the biological movement interpretation task. Particular difficulties in the clinical group concerned the interpretation of communicative gestures.
Conclusions:
Our findings suggest that individuals' own movement experiences may play a crucial role in the development of biological movement perception. Individuals with motor disabilities may struggle with interpreting observed movements and nonverbal messages, potentially affecting their social functioning.
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