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On this page, you can see a list of my publications, and download most of them as a PDF. Your click on any of the links constitutes your request to me for a personal copy of the linked article, and my delivery of a personal copy. Any other use is prohibited. 
Publications by year

Accepted for Publication


Wills, A.J. and Pothos, E.M. (in press). On the Adequacy of Bayesian Evaluations of Categorization Models: Reply to Vanpaemel & Lee (2012). Psychological Bulletin.

Wills, A.J. (in press). Models of categorization. In D. Reisberg (Ed.). Oxford handbook of cognitive psychology. Oxford University Press.

Yeates, F., Jones, F.W., Wills, A.J., Aitken, M.R.F. and McLaren, I.P.L. (in press). Implicit Learning: A Demonstration and a Novel SRT Paradigm. Proceedings of the 34th Annual Conference of the Cognitive Science Society.

Yeates, F., Wills, A., Jones, F. and McLaren, I. (in press). State-Trace Analysis of Sequence Learning by Simple Recurrent Networks. Proceedings of the 34th Annual Conference of the Cognitive Science Society.

2012

Wills, A.J. and Pothos, E.M. (2012). On the adequacy of current empirical evaluations of formal models of categorization. Psychological Bulletin, 138, 102-125.

Kovacs, T. and Wills, A.J. (2012). Generalization versus discrimination in learning.  In N.M. Seele. Encyclopedia of the Sciences of Learning. Springer.

2011

Wills, A.J., Graham, S., Koh, Z., McLaren, I.P.L. and 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.  Advance online publication. doi: 10.1037/a0023120

Welham, A.K. and Wills, A.J. (2011). Unitization, similarity and overt attention in categorization and exposure. Memory and Cognition, 39, 1518-1533.  doi: 10.3758/s13421-011-0124-x

Pothos, E.M. and Wills, A.J. (Eds.) (2011). Formal approaches in categroization. Cambridge University Press.

Goto, K., Lea, S.E.G., Wills, A.J. and 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.

Graham, S.,  Jie. H.L., Minn, C.H., McLaren, I.P.L.  and Wills, A.J. (2011). Simultaneous backward conditioned inhibition and mediated conditioning. Journal of Experimental Psychology: Animal Behavior Processes, 31, 241-245.

McLaren, I.P.L., Wills, A.J. and Graham, S. (2011).  Representation development, perceptual learning and concept formation. Behavioral and Brain Sciences, 34, 141-142.

 Wills, A.J., Barrasin, T. J. and McLaren, I. P. L. (2011).  Working Memory Capacity and Generalization in Predictive Learning. In L. Carlson, C. Hölscher, & T. Shipley (Eds.), Proceedings of the 33rd Annual Conference of the Cognitive Science Society (pp. 3205-3210). Austin, TX: Cognitive Science Society.

Milton, F., Viika, L., Henderson, H. and Wills, A.J. (2011). The effect of time pressure and the spatial integration of the stimulus dimensions on overall similarity categorization. In L. Carlson, C. Hölscher, & T. Shipley (Eds.), Proceedings of the 33rd Annual Conference of the Cognitive Science Society (pp. 795-800). Austin, TX: Cognitive Science Society.

Wills, A.J. (2011). Learning From Errors: Perspectives From Basic Research. In E. Wuttke and J. Seifried, J. (Eds.) Learning from Errors at School and at Work. Verlag Barbara Budrich. pp. 143-153.

2010

Beesley, T., Wills, A.J. and Le Pelley, M.E. (2010). Syntactic transfer in artificial grammar learning. Psychonomic Bulletin & Review, 17, 1, 122-128.

Hopewell, L., Leaver, L.A., Lea, S.E.G., and Wills, A.J. (2010). Grey squirrels (Sciurus carolinensis) show a feature-negative effect specific to social learning. Animal Cognition 13, 2, 219-227.

McLaren, I.P.L., Wills, A.J. and Graham, S. (2010). Attention and perceptual learning. In C. Mitchell and M. Le Pelley. (Eds.) Attention and associative learning: From Brain to behaviour. Oxford University Press.

2009

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.A. and 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 (Scurius carolinensis), and Humans (Homo sapiens). Journal of Comparative Psychology, 123, 4, 391-405. ISSN: 0735-7036

Lea, S.E.G., Wills, A.J., Leaver, L.A., Ryan, C.M.E., Bryant, C.M.L. and 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, 4, 406-420. ISSN: 0735-7036

Milton, F., Wills, A.J. and Hodgson, T.L. (2009). The neural basis of overall similarity and single-dimension sorting. Neuroimage, 46, 319-326.

Milton, F. and Wills, A.J. (2009). Long-term persistence of sort strategy in free classification. Acta Psychologica. 130, 161-167.

Wills, A.J. (2009).  Prediction Errors and Attention in the Presence and Absence of Feedback. Current Directions in Psychological Science, 18, 95-100. ISSN: 0963-7214

Milton, F. and Wills, A.J. (2009).  Eye movements in overall similarity and single-dimension sorting. In N.A. Taatgen & H. van Rijn (Eds.), Proceedings of the Thirty-First Annual Conference of the Cognitive Science Society (pp. 1512-1517). Austin, TX: Cognitive Science Society.

2008 

Milton, F., Longmore, C.A. and Wills, A.J. (2008). Processes of overall similarity sorting in free classification. Journal of Experimental Psychology: Human Perception and Performance, 34, 676-692.

Lea, S.E.G. and Wills, A.J. (2008). Use of multiple dimensions in learned discriminations, Comparative Cognition and Behavior Reviews, 3, 115-133.

Milton, F. and Wills, A.J. (2008). The influence of perceptual difficulty on family resemblance sorting. Proceedings of the Thirtieth Annual Conference of the Cognitive Science Society, 2273 - 2278.

2007

Haslam, C.,Wills, A.J., Haslam, S.A., Kay, J., Baron, R. and 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. ISSN: 0093-934X

Wills, A.J., Lavric, A, Croft, G. and 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.

2006

Wills, A.J., Noury, M., Moberly, N.J. and Newport, M. (2006). Formation of category representations. Memory & Cognition, 34, 17-27. 

Lea, S.E.G., Wills, A.J. and Ryan, C.M.E. (2006). Why are artificial polymorphous concepts so hard for birds to learn? Quarterly Journal of Experimental Psychology, 59, 251-267.

2005

Le Pelley, M.E., Oakeshott, S.M, Wills, A.J. and 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, 226-236.

Wills, A.J. (2005). New directions in human associative learning. Lawrence Erlbaum Associates.

Wills, A.J. (2005). Association and cognition. In A.J.Wills (Ed.). New directions in human associative learning. Lawrence Erlbaum Associates. pp. 1-9.

Wills, A.J. (2005). Connectionist models of human associative learning. In A.J.Wills (Ed.). New directions in human associative learning. Lawrence Erlbaum Associates. pp. 95-99.

Zwickel, J. and Wills, A.J. (2005). Integrating associative models of supervised and unsupervised categorization. In A.J.Wills (Ed.). New directions in human associative learning. Lawrence Erlbaum Associates. pp. 101-123.

Wills, A.J. (2005). Applications and extension. In A.J.Wills (Ed.). New directions in human associative learning. Lawrence Erlbaum Associates. pp. 189-191.

2004

Wills, A.J., Suret, M.B. and 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.

Milton, F. and Wills, A.J. (2004). The influence of stimulus properties on category construction. Journal of Experimental Psychology. Learning, Memory, and Cognition. 30, 407-415.

Goto, K, Wills, A.J. and 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.

Bryant, C.M., Jones, G.J.F., and Wills, A.J. (2004). Integration of psychological models in the design of artificial creatures. Proceedings of the AISB 2004 symposium on Emotion, Cognition and Affective Computing. pp. 9-20 (ISBN: 1 902956 36 6).

2003

Lochmann, T. & Wills, A.J. (2003). Predictive history in an allergy prediction task. In Schmalhofer, F., Young, R. M. & Katz, G. (Eds.) Proceedings of EuroCogSci 03: The European Cognitive Science Congerence. Mahwah, New Jersey: Lawrence Erlbaum Associates. pp. 217-222.

Welham, A., Schnadt, M. and Wills, A.J. (2003). Speeded categorization: the effects of perceptual processing and decision-making time. Proceedings of the 25th Annual Conference of the Cognitive Science Society. pp. 1218-1223.

2002

Zwickel, J. and Wills, A.J. (2002). Is competitive learning an adequate account of free classification? Proceedings of the 24th Annual Conference of the Cognitive Science Society. pp. 982-987.

Wills, A.J. (2002). Adapting to a response deadline in categorization. Proceedings of the 24th Annual Conference of the Cognitive Science Society. 938-943.

Wills, A.J. (2002). Representing information. Psychology. Vol 3: Thinking and knowing. Grolier.

Wills, A.J. (2002).  Behaviorism. Psychology. Vol. 1: History of psychology. Grolier.

2000

Wills, A.J., Reimers, S., Stewart, N., Suret, M. and  McLaren, I.P.L. (2000). Tests of the ratio rule in categorization. Quarterly Journal of Experimental Psychology. 53A, 983-1011.

1998

Wills, A.J. and McLaren, I.P.L. (1998). Perceptual learning and free classification. Quarterly Journal of Experimental Psychology. 51B, 235-70.

Jones, F.W., Wills, A.J. and McLaren, I.P.L. (1998). Perceptual categorization: connectionist modelling and decision rules. Quarterly Journal of Experimental Psychology. 51B, 33-58.

1997

Wills, A.J. and 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.