Maze runners: monkeys show restricted Arabic numeral summation during computerized two-arm maze performance.

"Declarations Conflict of interestThe authors declare no competing interests. The authors declare that they have no affiliations or involvement in any organization with financial or non-financial interest in the subject matter or materials discussed in this manuscript. Ethical approvalGeorgia State University’s animal research program has been accredited by the Association for Assessment and Accreditation of Laboratory Animal Care (AAALAC). All methodology and care standards were approved by the Institutional Animal Care and Use Committee (IACUC) of Georgia State University (Protocol A21034). Conflict of interest The authors declare no competing interests. The authors declare that they have no affiliations or involvement in any organization with financial or non-financial interest in the subject matter or materials discussed in this manuscript."

"Funding Not applicable."