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Auditory and Visual Sequence Learning in Humans and Monkeys using an Artificial Grammar Learning Paradigm
Journal article   Open access   Peer reviewed

Auditory and Visual Sequence Learning in Humans and Monkeys using an Artificial Grammar Learning Paradigm

Alice E. Milne, Christopher I. Petkov and Benjamin Wilson
Neuroscience, Vol.389, pp.104-117
10/01/2018
DOI: 10.1016/j.neuroscience.2017.06.059
PMCID: PMC6278909
PMID: 28687306
url
https://doi.org/10.1016/j.neuroscience.2017.06.059View
Published (Version of record) Open Access

Abstract

Language flexibly supports the human ability to communicate using different sensory modalities, such as writing and reading in the visual modality and speaking and listening in the auditory domain. Although it has been argued that nonhuman primate communication abilities are inherently multisensory, direct behavioural comparisons between human and nonhuman primates are scant. Artificial grammar learning (AGL) tasks and statistical learning experiments can be used to emulate ordering relationships between words in a sentence. However, previous comparative work using such paradigms has primarily investigated sequence learning within a single sensory modality. We used an AGL paradigm to evaluate how humans and macaque monkeys learn and respond to identically structured sequences of either auditory or visual stimuli. In the auditory and visual experiments, we found that both species were sensitive to the ordering relationships between elements in the sequences. Moreover, the humans and monkeys produced largely similar response patterns to the visual and auditory sequences, indicating that the sequences are processed in comparable ways across the sensory modalities. These results provide evidence that human sequence processing abilities stem from an evolutionarily conserved capacity that appears to operate comparably across the sensory modalities in both human and nonhuman primates. The findings set the stage for future neurobiological studies to investigate the multisensory nature of these sequencing operations in nonhuman primates and how they compare to related processes in humans. This article is part of a Special Issue entitled: Sensory Sequence Processing in the Brain. (C) 2017 The Author(s). Published by Elsevier Ltd on behalf of IBRO.
Life Sciences & Biomedicine Neurosciences Neurosciences & Neurology Science & Technology

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