Included studies

• Abe K, Watanabe D (2011) Songbirds possess the spontaneous ability to discriminate syntactic rules. Nat Neurosci 14:1067–1074.

• Attaheri A, Kikuchi Y, Milne AE, Wilson B, Alter K, Petkov CI (2015) EEG potentials associated with artificial grammar learning in the primate brain. Brain and Language 148:74–80.

• Chen J, Rossum D van, Cate C ten (2014) Artificial grammar learning in zebra finches and human adults: XYX versus XXY. Anim Cogn 18:151–164.

• Chen J, ten Cate C (2015) Zebra finches can use positional and transitional cues to distinguish vocal element strings. Behavioural Processes 117:29–34.

• Endress AD, Carden S, Versace E, Hauser MD (2010) The apes’ edge: positional learning in chimpanzees and humans. Anim Cogn 13:483–495.

• Knowlton BJ, Squire LR (1996) Artificial Grammar Learning Depends on Implicit Acquisition of Both Abstract and Exemplar-Specific Information. Journal of Experimental Psychology 22:169–181.

• Saffran J, Hauser M, Seibel R, Kapfhamer J, Tsao F, Cushman F (2008) Grammatical pattern learning by human infants and cotton-top tamarin monkeys. Cognition 107:479–500.

• Heijningen CAA van, Chen J, Laatum I van, Hulst B van der, Cate C ten (2012) Rule learning by zebra finches in an artificial grammar learning task: which rule? Anim Cogn 16:165–175.

• Wilson B, Smith K, Petkov CI (2015) Mixed-complexity artificial grammar learning in humans and macaque monkeys: evaluating learning strategies. Eur J Neurosci 41:568–578.

• Wilson B, Slater H, Kikuchi Y, Milne AE, Marslen-Wilson WD, Smith K, Petkov CI (2013) Auditory Artificial Grammar Learning in Macaque and Marmoset Monkeys. J Neurosci 33:18825–18835.

• Wilson B, Kikuchi Y, Sun L, Hunter D, Dick F, Smith K, Thiele A, Griffiths TD, Marslen-Wilson WD, Petkov CI (2015) Auditory sequence processing reveals evolutionarily conserved regions of frontal cortex in macaques and humans. Nat Commun 6:8901.