Theoretical cognitive neuroscience lab

M. W. Howard, Principal Investigator






  • Shankar, K. H., Singh, I., and Howard M. W. (Revised). Neural mechanism to simulate a scale-invariant future. (pdf)
  • Singh, I., Oliva, A., and Howard, M. W. (revised). Visual memories are stored on logarithmically-compressed representation of the past. (pdf)
  • Tiganj, Z., Kim, J., Jung, M. W., and Howard M. W. (revised). Sequential firing codes for time in rodent mPFC. (pdf)
  • Published

  • Howard, M. W., Shankar, K. H., and Tiganj, Z. (2015). Efficient neural computation in the Laplace domain. In Tarek R. Besold, Artur d'Avila Garcez, Gary F. Marcus, Risto Miikulainen (eds.): Proceedings of the NIPS 2015 workshop on Cognitive Computation: Integrating Neural and Symbolic Approaches. Montreal, Canada, 2015. (pdf)
  • Howard, M.W. and Eichenbaum, H. (2015). Time and space in the hippocampus. Brain Research. 1621, 345-354. (pdf) (doi)
  • Criss, A.H. and Howard, M.W. (2015). Episodic memory. In Oxford Handbook of Computational and Mathematical Psychology J.R. Busemeyer, J.T. Townsend, Z.J. Wang, and A. Eidels (Eds.). Oxford University Press.
  • Howard, M.W., Shankar, K.H., Aue, W.R., and Criss, A.H. (2015). A distributed representation of internal time, Psychological Review, 122, 24-53. (pdf) (doi)
  • Shankar, K.H. (2015). Generic construction of scale-invariantly coarse grained memory. Australasian Conference on Artificial Life and Computational Intelligence 2015, S.K. Chalup et al. (Eds.), 8955, 175-184. (pdf)
  • Tiganj, Z., Hasselmo, M.E., and Howard, M.W. (2015). A simple biophysically plausible model for long time constants in single neurons, Hippocampus, 25, 27-37. (pdf) (doi)
  • Howard, M.W., MacDonald, C.J., Tiganj, Z., Shankar, K.H., Du, Q., Hasselmo, M.E., and Eichenbaum, H. (2014). A unified mathematical framework for coding time, space, and sequences in the hippocampal region. Journal of Neuroscience, 34, 4692-4707. (pdf)
  • Howard, M.W. (2014). Mathematical learning theory through time. Journal of Mathematical Psychology, 59, 18-29. (pdf) (doi)
  • Shankar, K.H. and Howard, M.W. (2013). Optimally fuzzy scale-free memory, Journal of Machine Learning Research, 14, 3753-3780. (pdf)
  • Howard, M.W. and Eichenbaum, H. (2013). The hippocampus, time, and memory across scales. Journal of Experimental Psychology: General, 142, 1211-1230. (pdf) (doi)
  • Shankar, K.H. (2013). Quantum random walks and decision making. Topics in Cognitive Science, 6, 108-113. (pdf)
  • Komorowski, R.W., Garcia, C.G., Wilson, A., Hattori, S., Howard, M.W., and Eichenbaum, H. (2013). Ventral hippocampal neurons are shaped by experience to represent behaviorally relevant contexts. Journal of Neuroscience, 33, 8079-8087. (pdf)
  • Kilic, A., Hoyer, W.J., and Howard, M.W. (2013). Effects of Spacing of Item Repetitions in Continuous Recognition Memory: Does Item Retrieval Difficulty Promote Item Retention in Older Adults? Experimental Aging Research, 39, 322-341.
  • Kilic, A., Criss, A.H., and Howard, M.W. (2013). A causal contiguity effect that persists across time scales. Journal of Experimental Psychology: Learning, Memory and Cognition, 39, 297-303. (pdf)
  • Howard, M.W., Viskontas, I.V., Shankar, K.H., and Fried, I. (2012). Ensembles of human MTL neurons ``jump back in time'' in response to a repeated stimulus. Hippocampus, 22, 1833-1847. (pdf)
  • Shankar, K.H., and Howard, M.W. (2012). A scale-invariant internal representation of time. Neural Computation, 24, 134-193. (pdf)
  • Howard, M.W., Shankar, K.H., and Jagadisan, U.K.K. (2011). Constructing semantic representations from a gradually-changing representation of temporal context. Topics in Cognitive Science, 3, 48-73. (pdf) (doi)
  • Shankar, K.H., and Howard, M.W. (2010). Timing using temporal context. Brain Research, 1365, 3-17. (doi)
  • Sederberg, P.B., Miller, J.F., Howard, M.W., and Kahana, M.J. (2010). The temporal contiguity effect predicts episodic memory performance. Memory & Cognition, 38, 689-699. (doi)
  • Onyper, S.V., Zhang, Y., and Howard, M.W. (2010). Some-or-none recollection: Evidence from item and source memory. Journal of Experimental Psychology: General, 139, 341-364. (pdf) (PMC)
  • Shankar, K.H., Jagadisan, U.K.K., and Howard, M.W. (2009). Sequential learning using temporal context. Journal of Mathematical Psychology, 53, 474-485. (pdf)
  • Howard, M.W., Sederberg, P.B., and Kahana, M. J.(2009). Reply to Farrell & Lewandowsky: Recency-contiguity interactions predicted by the temporal context model. Psychonomic Bulletin & Review, 16, 973-984. (doi)
  • Howard, M.W., Jing, B., Rao, V.A., Provyn, J.P., & Datey, A.V. (2009). Bridging the gap: Transitive associations between items presented in similar temporal contexts. Journal of Experimental Psychology: Learning, Memory & Cognition, 35, 391-407. (pdf)
  • Howard, M.W. (2009). Memory: Computational models. in L. R. Squire (Ed), New Encyclopedia of Neuroscience, volume 5, pp. 771-777. Oxford: Academic Press.
  • Howard, M.W., Kahana, M.J., and Sederberg, P.B., (2008). Postscript: Distinguishing between temporal context and short-term store. Psychological Review, 115, 1125-6.
  • Kahana, M.J., Sederberg, P.B., and Howard, M.W. (2008). Putting short-term memory into context: Reply to Usher, Davelaar, Haarman and Goshen-Gottstein (2008). Psychological Review, 115, 1119-1126.
  • Sederberg, P.B., Howard, M.W., and Kahana, M.J. (2008). A context-based theory of recency and contiguity in free recall. Psychological Review, 115, 893-912. (pdf)
  • Rao, V. A. and Howard, M. W. (2008). Retrieved context and the discovery of semantic structure. Advances in Neural Information Processing Systems 20, J.C. Platt, D. Koller, Y. Singer and S. Roweis, Eds. MIT Press: Cambridge, MA. (pdf)
  • Kahana, M.J., Howard, M.W., & Polyn, S.M. (2008). Associative retrieval processes in episodic memory. In, H. L. Roediger, (Ed), Learning and Memory-A Comprehensive Reference, Academic Press, Oxford, pp. 467-490. (pdf)
  • Howard, M.W., Youker, T.E., and Venkatadass, V. (2008). The persistence of memory: Contiguity effects across several hundred seconds. Psychonomic Bulletin & Review, 15, 58-63. (pdf)
  • Provyn, J.P., Sliwinski, M.J. & Howard, M.W. (2007). Effects of age on contextually mediated associations in paired associate learning. Psychology and Aging, 22, 846-857.
  • Manns, J.R., Howard, M.W., & Eichenbaum, H.B. (2007). Gradual changes in hippocampal activity support remembering the order of events, Neuron, 56, 530-540. (doi)
  • Howard, M.W., Venkatadass, V., Norman, K.A., and Kahana, M.J. (2007). Associative processes in immediate recency. Memory & Cognition, 35, 1700-1711. (pdf)
  • Howard, M.W., Addis, K.A., Jing, B., and Kahana, M.J. (2007), Semantic structure and episodic recall, in Landauer, McNamara, Dennis, & Kintsch (Eds) Handbook of Latent Semantic Analysis, Laurence Erlbaum Associates: Mahwah, NJ, pp. 121-141.
  • Siekmeier, P.J., Hasselmo, M.E., Howard, M.W., and Coyle, J.T. (2007). Modeling of context dependent retrieval in hippocampal region CA1: Implications for cognitive function in schizophrenia. Schizophrenia Research, 89, 177-190. (pdf)
  • Zaromb, F.M., Howard, M.W., Dolan, E.D., Sirotin, Y.B., Tully, M., Wingfield, A.and Kahana, M.J. (2006). Temporally-based false memories in free recall. Journal of Experimental Psychology: Learning, Memory and Cognition, 32, 792-804.
  • Howard, M.W., Wingfield, A.and Kahana, M.J. (2006). Aging and contextual binding: Modeling recency and lag-recency effects with the temporal context model, Psychonomic Bulletin & Review, 13, 439-445.
  • Howard, M.W., Bessette-Symons, B.A., Zhang, Y., and Hoyer, W.J. (2006). Aging selectively impairs recollection in recognition memory for pictures: Evidence from modeling and ROC curves, Psychology and Aging, 21, 96-106. (pdf)
  • Howard, M.W.,  and Natu, V.S. (2005). Position from time: Spatial precision in the temporal context model, Neural Networks, 18, 1150-1162. (pdf)
  • Schwartz, G., Howard, M.W., Jing, B., and Kahana, M.J. (2005). Shadows of the past: Temporal retrieval effects in recognition memory, Psychological Science, 16, 898-904. (pdf)
  • Kahana, M.J. and Howard, M.W. (2005). The spacing and lag effect in free recall, Psychonomic Bulletin & Review, 12, 159-164.
  • Howard, M.W., Fotedar, M.S., Datey, A.V. and Hasselmo, M.E. (2005). The temporal context model in spatial navigation and relational learning: Toward a common explanation of medial temporal lobe function across domains, Psychological Review, 112, 75-116. (pdf)
  • Howard, M.W. (2004). Scaling behavior in the temporal context model, Journal of Mathematical Psychology, 48, 230-238. (pdf)
  • Sederberg, P.B., Kahana, M.J., Howard, M.W., Donner, E., and Madsen, J.R. (2003). Theta and gamma oscillations during encoding predict subsequent recall, Journal of Neuroscience, 23, 10809-14. (pdf)
  • Howard, M.W., Rizzuto, D.S., Madsen, J.R., Lisman, J.E., Aschenbrenner-Scheibe, R., Schulze-Bonhage, A., and Kahana, M.J. (2003). Gamma oscillations correlate with working memory load in humans, Cerebral Cortex, 13, 1369-1374. (pdf)
  • Sherman, S.J., Atri, A., Hasselmo, M.E., Stern, C.E., and Howard, M.W. (2003). Scopolamine impairs human recognition memory: Data and modeling. Behavioral Neuroscience, 117, 526-539. (pdf)
  • Kahana, M.J., Howard, M.W., Zaromb, F.M., and Wingfield, A. (2002). Age dissociates recency and lag-recency effects in free recall. Journal of Experimental Psychology: Learning, Memory and Cognition, 28, 530-540.
  • Howard, M.W. and Kahana, M.J. (2002). A distributed representation of temporal context. Journal of Mathematical Psychology, 46, 269-299. (pdf) (doi)
  • Howard, M.W.  and Kahana, M.J. (2002). When does semantic similarity help episodic retrieval? Journal of Memory and Language, 46, 85-98.
  • Howard, M.W. and Kahana, M.J. (1999). Contextual variability and serial position effects in free recall. Journal of Experimental Psychology: Learning, Memory and Cognition, 25, 923-941.