Type: Article

2018
[53]	Seabrooke, T., Hollins, T.J., Kent, C., Wills, A.J., & Mitchell, C.J. (2018). Learning from failure: Errorful generation improves memory for items, not associations. Journal of Memory and Language, accepted, . [pdf] [exp. 1] [exp. 2] [exp. 3] [exp. 4] [exp. 5] [IR]
[52]	Edmunds, C.E.R., Milton, F., & Wills, A.J. (2018). Due process in dual process: Model-recovery simulations of decision-bound strategy analysis in category learning. Cognitive Science, 42, 833-860. [pdf] [simulation code] [IR]
[51]	Seabrooke, T., Wills, A.J., Hogarth, L., & Mitchell, C.J. (2018). Automaticity and cognitive control: Effects of cognitive load on cue-controlled reward choice. Quarterly Journal of Experimental Psychology, accepted, . [pdf] [exp. 1] [exp. 2] [IR]
[50]	Sambrook, T.D., Wills, A.J., Hardwick, B., & Goslin, J. (2018). Model-free and model-based reward prediction errors in EEG. NeuroImage, 178, 162-171. [pdf] [model fits] [IR]
[49]	Lea, S.E.G., Pothos, E.M., Wills, A.J., Leaver, L.A., Ryan, C.M.E., & Meier, C. (2018). Multiple Feature Use in Pigeons’ Category Discrimination: The Influence of Stimulus Set Structure and the Salience of Stimulus Differences. Journal of Experimental Psychology: Animal Learning and Cognition, 44, 114-127. [pdf] [IR]
[48]	Edmunds, C.E.R., Wills, A.J., & Milton, F. (2018). Initial training with difficult items does not facilitate category learning. Quarterly Journal of Experimental Psychology, Published online, . [pdf] [exp. 1] [exp. 2] [exp. 3] [exp. 4] [IR]
[47]	Longman, C.S., Milton, F., Wills, A.J., & Verbruggen, F. (2018). Transfer of learned category-response associations is modulated by instruction. Acta Psychologica, 184, 144-167. [pdf] [data, analysis] [IR]
2017
[46]	Wills, A.J., O'Connell, G., Edmunds, C.E.R., & Inkster, A.B. (2017). Progress in modeling through distributed collaboration: Concepts, tools, and category-learning examples. Psychology of Learning and Motivation, 66, 79-115. [pdf] [latex] [IR] [get catlearn] [video: conference talk, EPS Jan 2017]
[45]	Milton, F., Bealing, P., Carpenter, K.L., Bennattayallah, A., & Wills, A.J. (2017). The neural correlates of similarity- and rule-based generalization. Journal of Cognitive Neuroscience, 29, 150-166. [pdf] [data, analysis] [IR]
[44]	Lawson, R., Chang, F., & Wills, A. J. (2017). Free classification of large sets of everday objects is more thematic than taxonomic. Acta Psychologica, 172, 26-40. [pdf] [data, analysis] [get freesortphi] [IR]
[43]	Wills, A.J., & Hollins, T.J. (2017). In defence of effect-centric research. Journal of Applied Research in Memory and Cognition, 6, 43--46. [pdf] [IR]
[42]	Roberts, H., Watkins, E., & Wills, A.J. (2017). Does rumination cause "inhibitory" deficits?. Psychopathology Review, 4, 341-376. [pdf] [IR]
2016
[41]	Le Pelley, M.E., Mitchell, C.J., Beesley, T., George, D.N., & Wills, A.J. (2016). Attention and associative learning in humans: An integrative review. Psychological Bulletin, 142, 1111-1140. [pdf] [IR]
[40]	Carpenter, K., Wills, A.J., Bennattayallah, A., & Milton, F. (2016). A comparison of the neural correlates that underlie rule-based and information-integration category learning. Human Brain Mapping, 37, 3557–3574. [pdf] [IR]
[39]	O'Connell, G., Myers, C.E., Hopkins, R.O., McLaren, R.P., Gluck, M.A., & Wills, A.J. (2016). Amnesic patients show superior generalization in category learning. Neuropsychology, 30, 915–919. [pdf] [simulation,data] [IR]
2015
[38]	Wills, A.J., Inkster, A.B., & Milton, F. (2015). Combination or Differentiation? Two theories of processing order in classification. Cognitive Psychology, 80, 1-33. [pdf] [suppl.] [exp. 1] [exp. 2] [exp. 3A] [exp. 3B] [impuls.] [exp. 4A] [exp. 4B] [exp. 5] [IR]
[37]	Maes, E., De Filippo, G., Inkster, A., Lea, S.E.G., De Houwer, J., D'Hooge, R., Beckers, T., & Wills, A.J. (2015). Feature- versus rule-based generalization in rats, pigeons and humans. Animal Cognition, 18, 1267--1284. [pdf] [exp. 1A] [exp. 1B] [exp. 2A] [exp. 2B] [IR]
[36]	Edmunds, C.E.R., Milton, F., & Wills, A.J. (2015). Feedback can be superior to observational training for both rule-based and information-integration category structures. Quarterly Journal of Experimental Psychology, 68, 1203-1222. [pdf] [exp. 1] [exp. 2] [IR]
[35]	Yeates, F., Wills, A.J., Jones, F.W., & McLaren, I.P.L. (2015). State trace analysis: Dissociable processes in a connectionist network?. Cognitive Science, 39, 1047-1061. [pdf] [IR]
[34]	Hogarth, L., Zhimin, H., Chase, H.W., Wills, A.J., Troisi II, J., Leventhal, M., Mathew, A.R., & Hitsman, B. (2015). Negative mood reverses devaluation of goal-directed drug-seeking favouring an incentive learning account of drug dependence. Psychopharmacology, 232, 3235-3247. [pdf] [IR]
2014
[33]	Wills, A.J., Lavric, A., Hemmings, Y., & Surrey, E. (2014). Attention, predictive learning, and the inverse base-rate effect: Evidence from event-related potentials. NeuroImage, 87, 61-71. [pdf] [IR]
2013
[32]	Wills, A.J., Milton, F., Longmore, C.A., Hester, S., & Robinson, J. (2013). Is overall similarity classification less effortful than single-dimension classification?. Quarterly Journal of Experimental Psychology, 66, 299-318. [pdf] [exp. 1A] [exp. 1B] [exp. 2] [exp. 3] [exp. 4]
[31]	Newell, B.R., Moore, C.P., Wills, A.J., & Milton, F. (2013). Reinstating the frontal lobes? Having more time to think improves 'implicit' perceptual categorization. A comment on Filoteo, Lauritzen and Maddox (2010). Psychological Science, 24, 386-389. [pdf]
[30]	Yeates, F., Wills, A.J., McLaren, R.P., & McLaren, I.P.L. (2013). Modeling human sequence learning under incidental conditions. Journal of Experimental Psychology: Animal Behavior Processes, 39, 166-173. [pdf]
[29]	Roberts, H., Watkins, E.R., & Wills, A.J. (2013). Cueing an unresolved personal goal causes persistent ruminative self-focus: an experimental evaluation of control theories of rumination. Journal of Behavior Therapy and Experimental Psychiatry, 44, 449-455. [pdf]
2012
[28]	Wills, A.J., & Pothos, E.M. (2012). On the adequacy of current empirical evaluations of formal models of categorization. Psychological Bulletin, 138, 102-125. [pdf]
[27]	Wills, A.J., & Pothos, E.M. (2012). On the adequacy of Bayesian evaluations of categorization models: Reply to Vanpaemel & Lee (2012). Psychological Bulletin, 138, 1253-1258. [pdf]
2011
[26]	Wills, A.J., Graham, S., Koh, Z., McLaren, I.P.L., & Rolland, M.D. (2011). Effects of concurrent load on feature- and rule-based generalization in human contingency learning. Journal of Experimental Psychology: Animal Behavior Processes, 37, 308-316. [pdf] [exp. 1] [exp. 2]
[25]	Welham, A.K., & Wills, A.J. (2011). Unitization, similarity and overt attention in categorization and exposure. Memory and Cognition, 39, 1518-1533. [pdf]
[24]	Graham, S., Jie, H.L., Minn, C.H., McLaren, I.P.L., & Wills, A.J. (2011). Simultaneous backward conditioned inhibition and mediated conditioning. Journal of Experimental Psychology: Animal Behavior Processes, 31, 241-245. [pdf]
[23]	Goto, K., Lea, S.E.G., Wills, A.J., & Milton, F. (2011). Interpreting the effects of image manipulation on picture perception in pigeons (Columba livia) and humans (Homo sapiens). Journal of Comparative Psychology, 125, 48-60. [pdf]
[22]	McLaren, I.P.L., Wills, A.J., & Graham, S. (2011). Representation development, perceptual learning and concept formation. Behavioral and Brain Sciences, 34, 141-142. [pdf]
2010
[21]	Beesley, T., Wills, A.J., & Le Pelley, M.E. (2010). Syntactic transfer in artificial grammar learning. Psychonomic Bulletin and Review, 17, 122-128. [pdf]
[20]	Hopewell, L., Leaver, L.A., Lea, S.E.G., & Wills, A.J. (2010). Grey squirrels (Sciurus carolinensis) show a feature-negative effect specific to social learning. Animal Cognition, 13, 219-227. [pdf]
2009
[19]	Wills, A.J. (2009). Prediction errors and attention in the presence and absence of feedback. Current Directions in Psychological Science, 18, 95-100. [pdf]
[18]	Wills, A.J., Lea, S.E.G., Leaver, L.A., Osthaus, B., Ryan, C.M.E., Suret, M.B., Bryant, C.M.L., Chapman, S.J., & Millar, L. (2009). A comparative analysis of the categorization of multidimensional stimuli: I. Unidimensional classification does not necessarily imply analytic processing; evidence from pigeons (Columba livia), squirrels (Sciurus carolinensis), and humans (Homo sapiens). Journal of Comparative Psychology, 123, 391-405. [pdf] [exp1a] [exp1b] [exp2] [squirrel video]
[17]	Milton, F., Wills, A.J., & Hodgson, T.L. (2009). The neural basis of overall similarity and single-dimension sorting. NeuroImage, 46, 319-326. [pdf]
[16]	Milton, F., & Wills, A.J. (2009). Long-term persistence of sort strategy in free classification. Acta Psychologica, 130, 161-167. [pdf]
[15]	Lea, S.E.G., Wills, A.J., Leaver, L.A., and Ryan, C.M.E., Bryant, C.M.L., & Millar, L. (2009). A comparative analysis of the categorization of multidimensional stimuli: II. Strategic information search in humans (Homo sapiens) but not in pigeons (Columba livia). Journal of Comparative Psychology, 123, 406-420. [pdf]
2008
[14]	Milton, F., Longmore, C.A., & Wills, A.J. (2008). Processes of overall similarity sorting in free classification. Journal of Expeirmental Psychology: Human Perception and Performance, 30, 407-415. [pdf]
[13]	Lea, S.E.G., & Wills, A.J. (2008). Use of multiple dimensions in learned discriminations. Comparative Cognition and Behavior Reviews, 3, 115-133. [pdf]
2007
[12]	Wills, A.J., Lavric, A., Croft, G., & Hodgson, T.L. (2007). Predictive learning, prediction errors and attention: Evidence from event-related potentials and eye tracking. Journal of Cognitive Neuroscience, 19, 843-854. [pdf] [publicity]
[11]	Haslam, C., Wills, A.J., Haslam, S.A., Kay, J., Baron, R., & McNab, F. (2007). Does maintenance of colour categories rely on language? Evidence to the contrary from a case of semantic dementia. Brain and Language, 103, 251-263. [pdf]
2006
[10]	Wills, A.J., Noury, M., Moberly, M.J., & Newport, M. (2006). Formation of category representations. Memory and Cognition, 34, 17-27. [pdf]
[9]	Lea, S.E.G., Wills, A.J., & Ryan, C.M.E. (2006). Why are artificial polymorphous concepts so hard for birds to learn?. Quarterly Journal of Experimental Psychology, 59, 251-267. [pdf]
2005
[8]	Le Pelley, M.E., Oakeshott, S.M., Wills, A.J., & McLaren, I.P.L. (2005). The outcome-specificity of learned predictiveness effects: Parallels between human causal learning and animal conditioning. Journal of Experimental Psychology: Animal Behavior Processes, 31, 2226-236. [pdf]
2004
[7]	Milton, F., & Wills, A.J. (2004). The influence of stimulus properties on category construction. Journal of Experimental Psychology: Learning, Memory and Cognition, 30, 407-415. [pdf]
[6]	Wills, A.J., Suret, M.B., & McLaren, I.P.L. (2004). The role of category structure in determining the effects of stimulus preexposure on categorization accuracy. Quarterly Journal of Experimental Psychology, 57B, 79-88. [pdf] [fig1svg] [fig1pdf]
[5]	Goto, K., Wills, A.J., & Lea, S.E.G. (2004). Global-feature classification can be acquired more rapidly than local-feature classification in both humans and pigeons. Animal Cognition, 7, 109-113. [pdf]
2000
[4]	Wills, A.J., Reimers, S., Stewart, N., & McLaren, I.P.L. (2000). Tests of the ratio rule in categorization. Quarterly Journal of Experimental Psychology, 53A, 983-1011. [pdf] [exp. 2]
1998
[3]	Wills, A.J., & McLaren, I.P.L. (1998). Perceptual learning and free classification. Quarterly Journal of Experimental Psychology, 51B, 235-270. [pdf] [fig1png]
[2]	Jones, F.W., Wills, A.J., & McLaren, I.P.L. (1998). Perceptual categorization: connectionist modelling and decision rules. Quarterly Journal of Experimental Psychology, 51B, 33-58. [pdf]
1997
[1]	Wills, A.J., & McLaren, I.P.L. (1997). Generalization in human category learning: A connectionist explanation of differences in gradient after discriminative and non-discriminative training. Quarterly Journal of Experimental Psychology, 50A, 607-630. [pdf]