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VOL. 2, ISSUE 1 (2026)
Sensory processing, processing speed, and memory across the lifespan
Authors
Tina Qi Wang, Kok Hwee Chia
Abstract
This paper examines the central role of sensory processing (SP) and processing speed (PS) in the development,
maintenance, and decline of memory across the lifespan. Sensory systems,
including visual, auditory, tactile, olfactory, gustatory, and kinesthetic
modalities, constitute the primary pathways through which information enters
the brain and underpins the encoding, integration, and retrieval of memories.
Efficient and rapid SP in early development
facilitates robust memory formation, whereas age-related reductions in sensory
acuity and processing speed are associated with memory decline and increased
cognitive effort in later life. The paper further explores how atypical sensory
integration and slowed PS present in neurodivergent children, particularly
those with autism or ADHD, and how these differences influence learning and
working memory. It provides a detailed overview of common SP challenges and
associated behavioral indicators, including difficulties with sensory
discrimination, motor planning, and susceptibility to mental fatigue. In
addition, practical observational tools and reference tables are presented to
support the identification of sensory- and speed-related difficulties in home
and educational settings. The paper underscores the importance of early and
targeted interventions (e.g., sensory integration therapy, auditory training,
and assistive sensory supports) as well as strategies aimed at promoting
cognitive resilience in aging populations. Overall, understanding the dynamic
interaction between SP and cognitive
function is critical for educators, clinicians, and caregivers seeking to
optimize learning, memory performance, and quality of life.
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Pages:7-16
How to cite this article:
Tina Qi Wang, Kok Hwee Chia "Sensory processing, processing speed, and memory across the lifespan". World Journal of Current Science, Vol 2, Issue 1, 2026, Pages 7-16
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