Marc Howard | Profiles RNS

Marc Howard, PhD

Professor

Boston University College of Arts and Sciences

Psychological and Brain Sciences

PhD, Brandeis University
BA, Rutgers University

Websites

	Psychological & Brain Sciences Faculty
	Theoretical Cognitive Neuroscience Lab
	BU Center for Memory & Brain
	Rajen Kilachand Center for Integrated Life Sciences & Engineering
	Google Scholar
	ResearchGate

ORCID : 0000-0002-1478-1237

Marc Howard, PhD, is a Professor in the Department of Psychological and Brain Sciences and member of the Center for Memory and Brain. He received his PhD from Brandeis University in Neuroscience. His research interests include: cognitive and neural representation of time and space; mathematical psychology; computational neuroscience; episodic and semantic memory; and reward learning and prediction.

About the Theoretical Cognitive Neuroscience Lab:
We develop mathematical models of cognition and evaluate them against both behavioral and neurophysiological data, providing a bridge between cognition and systems-level neuroscience. We use a combination of mathematical, computational and behavioral tools to evaluate our hypotheses. The topics we investigate are centered on episodic memory, the ability we have to remember specific events situated in a particular spatiotemporal context. At present, our efforts are focused on developing and evaluating a unified mathematical framework to describe how the brain constructs the spatial and temporal context believed to underlie episodic memory. This model appears to have far-ranging implications, leading to research interests in statistical learning, semantic memory, time perception, and reward systems.

Professor
Boston University College of Arts and Sciences
Neuroscience

BU Research
NIH RePORTER Research

CRCNS: Neural Representations of Time Across Scales in Natural and Artificial Networks
09/01/2022 - 08/31/2025 (PI)
NIH/National Institute of Mental Health
5R01MH132171-02

Temporal Organization of Memory in the Hippocampus
07/19/2016 - 04/30/2022 (PI)
NIH/National Institute of Mental Health
5R01MH095297-10

Theoretical Cognitive Science for Augmented Reality
10/22/2019 - 04/16/2022 (PI)
Facebook Technologies, LLC

Theoretical Cognitive Science for Augmented Reality
05/01/2018 - 04/30/2021 (PI)
Facebook Technologies, LLC

NCS-FO: Learning Efficient Visual Representations From Realistic Environments Across Time Scales
09/01/2016 - 08/31/2020 (PI)
National Science Foundation
IIS-1631460

Navigation Through a Memory Space in the Rodent Hippocampus
07/15/2016 - 04/30/2020 (PI)
NIH/National Institute of Mental Health
5R01MH112169-03

Toward a Theory for Macroscopic Neural Computation Based on Laplace Transform
09/27/2016 - 08/31/2019 (PI)
NIH/National Institute of Biomedical Imaging & Bioengineering
5R01EB022864-03

Memory Enhancement with Modeling, Electrophysiology, and Stimulation (MEMES)
07/16/2014 - 06/03/2016 (Subcontract PI)
The Trustees of the University of Pennsylvania DOD DARPA

Sequential Learning From a Scale-Invariant Representation of Remembered Time
01/15/2012 - 12/31/2015 (PI)
National Science Foundation
BCS-1058937

A Distributed Representation of Remembered Time
07/01/2012 - 06/30/2015 (PI)
Department of Defense/AFOSR

Showing 10 of 11 results. Show All Results

Title

Yr	Title	Project-Sub Proj	Pubs
2024	CRCNS: Neural Representations of Time Across Scales in Natural and Artificial Networks	5R01MH132171-03
2023	CRCNS: Neural Representations of Time Across Scales in Natural and Artificial Networks	5R01MH132171-02
2020	Temporal Organization of Memory in the Hippocampus	5R01MH095297-10	29
2019	Temporal Organization of Memory in the Hippocampus	5R01MH095297-09	29
2018	Toward a Theory for Macroscopic Neural Computation Based on Laplace Transform	5R01EB022864-03	9
2018	CRCNS:Navigation Through A Memory Space in the Rodent Hippocampus	5R01MH112169-03	9
2018	Temporal Organization of Memory in the Hippocampus	5R01MH095297-08	29
2017	Toward a Theory for Macroscopic Neural Computation Based on Laplace Transform	5R01EB022864-02	9
2017	CRCNS:Navigation Through A Memory Space in the Rodent Hippocampus	5R01MH112169-02	9
2017	Temporal Organization of Memory in the Hippocampus	5R01MH095297-07	29

Showing 10 of 18 results. Show All Results

Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.

iCite Analysis Copy PMIDs To Clipboard

Lohnas LJ, Howard MW. The influence of emotion on temporal context models. Cogn Emot. 2024 Jul 15; 1-29. PMID: 39007902

Cao R, Bright IM, Howard MW. Ramping cells in rodent mPFC encode time to past and future events via real Laplace transform. bioRxiv. 2024 Feb 14. PMID: 38405896; PMCID: PMC10888827; DOI: 10.1101/2024.02.13.580170;

Howard MW, Esfahani ZG, Le B, Sederberg PB. Foundations of a temporal RL. ArXiv. 2023 Feb 20. PMID: 36866224; PMCID: PMC9980275

Cao R, Bladon JH, Charczynski SJ, Hasselmo ME, Howard MW. Internally generated time in the rodent hippocampus is logarithmically compressed. Elife. 2022 Oct 17; 11.View Related Profiles.

Howard, Marc
Hasselmo, Michael

PMID: 36250631; PMCID: PMC9651951; DOI: 10.7554/eLife.75353;

Tiganj Z, Singh I, Esfahani ZG, Howard MW. Scanning a compressed ordered representation of the future. J Exp Psychol Gen. 2022 Dec; 151(12):3082-3096. PMID: 35913876; PMCID: PMC9670103; DOI: 10.1037/xge0001243;

Goh WZ, Ursekar V, Howard MW. Predicting the Future With a Scale-Invariant Temporal Memory for the Past. Neural Comput. 2022 02 17; 34(3):642-685.View Related Profiles.

Howard, Marc
Goh, Wei Zhong

PMID: 35026027; PMCID: PMC8944185; DOI: 10.1162/neco_a_01475;

Sarkar A, Howard MW. Scale-Dependent Relationships in Natural Language. Comput Brain Behav. 2021 Jun; 4:164-177. PMID: 34337323; PMCID: PMC8317965; DOI: 10.1007/s42113-020-00094-8;

Cruzado NA, Tiganj Z, Brincat SL, Miller EK, Howard MW. Conjunctive representation of what and when in monkey hippocampus and lateral prefrontal cortex during an associative memory task. Hippocampus. 2020 12; 30(12):1332-1346. PMID: 33174670

Bright IM, Meister MLR, Cruzado NA, Tiganj Z, Buffalo EA, Howard MW. A temporal record of the past with a spectrum of time constants in the monkey entorhinal cortex. Proc Natl Acad Sci U S A. 2020 08 18; 117(33):20274-20283. PMID: 32747574; PMCID: PMC7443936; DOI: 10.1073/pnas.1917197117;

Liu Y, Howard MW. Generation of Scale-Invariant Sequential Activity in Linear Recurrent Networks. Neural Comput. 2020 07; 32(7):1379-1407. PMID: 32433902

Showing 10 of 75 results. Show More

Babcock SW, Howard MW, McGuire JT. Time-conjunctive representations of future events. Mem Cognit. 2020 05; 48(4):672-682.View Related Profiles.

Howard, Marc
Babcock, Stuart

PMID: 31853879

Bladon JH, Sheehan DJ, De Freitas CS, Howard MW. In a Temporally Segmented Experience Hippocampal Neurons Represent Temporally Drifting Context But Not Discrete Segments. J Neurosci. 2019 08 28; 39(35):6936-6952.View Related Profiles.

Bladon, John
Howard, Marc

PMID: 31253754; PMCID: PMC6733554; DOI: 10.1523/JNEUROSCI.1420-18.2019;

Tiganj Z, Gershman SJ, Sederberg PB, Howard MW. Estimating Scale-Invariant Future in Continuous Time. Neural Comput. 2019 04; 31(4):681-709. PMID: 30764739; PMCID: PMC6959535; DOI: 10.1162/neco_a_01171;

Liu Y, Tiganj Z, Hasselmo ME, Howard MW. A neural microcircuit model for a scalable scale-invariant representation of time. Hippocampus. 2019 03; 29(3):260-274.View Related Profiles.

Howard, Marc
Hasselmo, Michael

PMID: 30421473; PMCID: PMC7001882; DOI: 10.1002/hipo.22994;

Howard MW, Luzardo A, Tiganj Z. Evidence accumulation in a Laplace domain decision space. Comput Brain Behav. 2018 Dec; 1(3-4):237-251. PMID: 31131363; PMCID: PMC6530931; DOI: 10.1007/s42113-018-0016-2;

Palombo DJ, Di Lascio JM, Howard MW, Verfaellie M. Medial Temporal Lobe Amnesia Is Associated with a Deficit in Recovering Temporal Context. J Cogn Neurosci. 2019 02; 31(2):236-248.View Related Profiles.

Di Lascio, Joseph
Howard, Marc
Verfaellie, Mieke

PMID: 30240314

Mau W, Sullivan DW, Kinsky NR, Hasselmo ME, Howard MW, Eichenbaum H. The Same Hippocampal CA1 Population Simultaneously Codes Temporal Information over Multiple Timescales. Curr Biol. 2018 05 21; 28(10):1499-1508.e4.View Related Profiles.

Howard, Marc
Hasselmo, Michael
Kinsky, Nathaniel

PMID: 29706516; PMCID: PMC5964012; DOI: 10.1016/j.cub.2018.03.051;

Tiganj Z, Cromer JA, Roy JE, Miller EK, Howard MW. Compressed Timeline of Recent Experience in Monkey Lateral Prefrontal Cortex. J Cogn Neurosci. 2018 07; 30(7):935-950. PMID: 29698121; PMCID: PMC7004225; DOI: 10.1162/jocn_a_01273;

Singh I, Tiganj Z, Howard MW. Is working memory stored along a logarithmic timeline? Converging evidence from neuroscience, behavior and models. Neurobiol Learn Mem. 2018 09; 153(Pt A):104-110. PMID: 29698768; PMCID: PMC6064661; DOI: 10.1016/j.nlm.2018.04.008;

Redish AD, Howard MW. The legacy of Adam Johnson. Hippocampus. 2018 Jun; 28(6):453-454. PMID: 29601117

Folkerts S, Rutishauser U, Howard MW. Human Episodic Memory Retrieval Is Accompanied by a Neural Contiguity Effect. J Neurosci. 2018 04 25; 38(17):4200-4211. PMID: 29615486; PMCID: PMC5963851; DOI: 10.1523/JNEUROSCI.2312-17.2018;

Howard MW. Memory as Perception of the Past: Compressed Time inMind and Brain. Trends Cogn Sci. 2018 02; 22(2):124-136. PMID: 29389352; PMCID: PMC5881576; DOI: 10.1016/j.tics.2017.11.004;

Tiganj Z, Jung MW, Kim J, Howard MW. Sequential Firing Codes for Time in Rodent Medial Prefrontal Cortex. Cereb Cortex. 2017 Dec 01; 27(12):5663-5671. PMID: 29145670; PMCID: PMC6433183; DOI: 10.1093/cercor/bhw336;

Howard MW, Shankar KH. Neural scaling laws for an uncertain world. Psychol Rev. 2018 01; 125(1):47-58. PMID: 29035080; PMCID: PMC5773370; DOI: 10.1037/rev0000081;

Howard MW. Temporal and spatial context in the mind and brain. Curr Opin Behav Sci. 2017 Oct; 17:14-19. PMID: 28845441; PMCID: PMC5570558; DOI: 10.1016/j.cobeha.2017.05.022;

Shankar KH, Singh I, Howard MW. Neural Mechanism to Simulate a Scale-Invariant Future. Neural Comput. 2016 12; 28(12):2594-2627. PMID: 27626961

Salz DM, Tiganj Z, Khasnabish S, Kohley A, Sheehan D, Howard MW, Eichenbaum H. Time Cells in Hippocampal Area CA3. J Neurosci. 2016 Jul 13; 36(28):7476-84. PMID: 27413157; PMCID: PMC4945667; DOI: 10.1523/JNEUROSCI.0087-16.2016;

Criss AH, Howard MW. Episodic memory. In Oxford Handbook of Computational and Mathematical Psychology, J. R. Busemeyer, J. T. Townsend, Z. J. Wang, and A. Eidels (Eds.). University Press. Oxford. 2015.
Howard MW, Shankar KH, Tiganj Z. 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.

Howard MW, Eichenbaum H. Time and space in the hippocampus. Brain Res. 2015 Sep 24; 1621:345-54. PMID: 25449892; PMCID: PMC4426245; DOI: 10.1016/j.brainres.2014.10.069;

Howard MW, Shankar KH, Aue WR, Criss AH. A distributed representation of internal time. Psychol Rev. 2015 Jan; 122(1):24-53. PMID: 25330329; DOI: 10.1037/a0037840;

Tiganj Z, Hasselmo ME, Howard MW. A simple biophysically plausible model for long time constants in single neurons. Hippocampus. 2015 Jan; 25(1):27-37.View Related Profiles.

Howard, Marc
Hasselmo, Michael

PMID: 25113022; PMCID: PMC4437581; DOI: 10.1002/hipo.22347;

Howard MW. Mathematical learning theory through time. Journal of Mathematical Psychology. 2014; 59:18–29. View Publication

Howard MW, MacDonald CJ, Tiganj Z, Shankar KH, Du Q, Hasselmo ME, Eichenbaum H. A unified mathematical framework for coding time, space, and sequences in the hippocampal region. J Neurosci. 2014 Mar 26; 34(13):4692-707.View Related Profiles.

Howard, Marc
Hasselmo, Michael

PMID: 24672015; PMCID: PMC3965792; DOI: 10.1523/JNEUROSCI.5808-12.2014;

Shankar KH, Howard MW. Optimally fuzzy scale-free memory. Journal of Machine Learning Research. 2013; 14:3753-3780. View Publication

Howard MW, Eichenbaum H. The hippocampus, time, and memory across scales. J Exp Psychol Gen. 2013 Nov; 142(4):1211-30. PMID: 23915126; PMCID: PMC3982793; DOI: 10.1037/a0033621;

Komorowski RW, Garcia CG, Wilson A, Hattori S, Howard MW, Eichenbaum H. Ventral hippocampal neurons are shaped by experience to represent behaviorally relevant contexts. J Neurosci. 2013 May 1; 33(18):8079-87. PMID: 23637197; PMCID: PMC3667351; DOI: 10.1523/JNEUROSCI.5458-12.2013;

Kiliç A, Hoyer WJ, Howard MW. Effects of spacing of item repetitions in continuous recognition memory: does item retrieval difficulty promote item retention in older adults? Exp Aging Res. 2013; 39(3):322-41. PMID: 23607400; DOI: 10.1080/0361073X.2013.779200;

Kiliç A, Criss AH, Howard MW. A causal contiguity effect that persists across time scales. J Exp Psychol Learn Mem Cogn. 2013 Jan; 39(1):297-303. PMID: 22582969; DOI: 10.1037/a0028463;

Howard MW, Viskontas IV, Shankar KH, Fried I. Ensembles of human MTL neurons "jump back in time" in response to a repeated stimulus. Hippocampus. 2012 Sep; 22(9):1833-47. PMID: 22488671; PMCID: PMC3407826; DOI: 10.1002/hipo.22018;

Shankar KH, Howard MW. A scale-invariant internal representation of time. Neural Comput. 2012 Jan; 24(1):134-93. PMID: 21919782; DOI: 10.1162/NECO_a_00212;

Howard MW, Shankar KH, Jagadisan UK. Constructing semantic representations from a gradually-changing representation of temporal context. Top Cogn Sci. 2011 Jan; 3(1):48-73. PMID: 21552364; PMCID: PMC3086794; DOI: 10.1111/j.1756-8765.2010.01112.x;

Sederberg PB, Miller JF, Howard MW, Kahana MJ. The temporal contiguity effect predicts episodic memory performance. Mem Cognit. 2010 Sep; 38(6):689-99. PMID: 20852233; DOI: 10.3758/MC.38.6.689;

Shankar KH, Howard MW. Timing using temporal context. Brain Res. 2010 Dec 13; 1365:3-17. PMID: 20654587; PMCID: PMC2993870; DOI: 10.1016/j.brainres.2010.07.045;

Onyper SV, Zhang YX, Howard MW. Some-or-none recollection: Evidence from item and source memory. J Exp Psychol Gen. 2010 May; 139(2):341-64. PMID: 20438255; PMCID: PMC2864935; DOI: 10.1037/a0018926;

Shankar KH, Jagadisan UKK, Howard MW. Sequential learning using temporal context. Journal of Mathematical Psychology. 2009; 53(6):474-485. View Publication

Howard MW, Sederberg PB, Kahana MJ. Reply to Farrell and Lewandowsky: Recency-contiguity interactions predicted by the temporal context model. Psychon Bull Rev. 2009 Oct; 16(5):973-84. PMID: 19927395; PMCID: PMC2803096

Howard MW, Jing B, Rao VA, Provyn JP, Datey AV. Bridging the gap: transitive associations between items presented in similar temporal contexts. J Exp Psychol Learn Mem Cogn. 2009 Mar; 35(2):391-407. PMID: 19271854; DOI: 10.1037/a0015002;

Howard MW. Memory: Computational models. in L. R. Squire (Ed), New Encyclopedia of Neuroscience. Academic Press. Oxford. 2009; 5:771-777.

Kahana MJ, Sederberg PB, Howard MW. Putting Short-Term Memory Into Context: Reply to Usher, Davelaar, Haarmann, and Goshen-Gottstein (2008). Psychol Rev. 2008 Oct; 115(4):1119-1125. PMID: 20976034; PMCID: PMC2957902; DOI: 10.1037/a0013724;

Howard MW, Kahana MJ, Sederberg PB. Postscript: Distinguishing between temporal context and short-term store. Psychological Review. 2008; 115(4):1125-6. View Publication

Sederberg PB, Howard MW, Kahana MJ. A context-based theory of recency and contiguity in free recall. Psychol Rev. 2008 Oct; 115(4):893-912. PMID: 18954208; PMCID: PMC2585999; DOI: 10.1037/a0013396;

Howard MW, Youker TE, Venkatadass VS. The persistence of memory: contiguity effects across hundreds of seconds. Psychon Bull Rev. 2008 Feb; 15(1):58-63. PMID: 18605480; PMCID: PMC2493616

Kahana MJ, Howard MW, Polyn SM. Associative retrieval processes in episodic memory. In, H. L. Roediger, (Ed), Learning and Memory - A Comprehensive Reference. Academic Press. Oxford. 2008; 467-490.

Rao VA, Howard MW. Retrieved context and the discovery of semantic structure. Adv Neural Inf Process Syst. 2008; 20:1193-1200. PMID: 19079779; PMCID: PMC2600676

Provyn JP, Sliwinski MJ, Howard MW. Effects of age on contextually mediated associations in paired associate learning. Psychol Aging. 2007 Dec; 22(4):846-57. PMID: 18179302; PMCID: PMC2486373; DOI: 10.1037/0882-7974.22.4.846;

Manns JR, Howard MW, Eichenbaum H. Gradual changes in hippocampal activity support remembering the order of events. Neuron. 2007 Nov 8; 56(3):530-40. PMID: 17988635; PMCID: PMC2104541; DOI: 10.1016/j.neuron.2007.08.017;

Howard MW, Venkatadass V, Norman KA, Kahana MJ. Associative processes in immediate recency. Mem Cognit. 2007 Oct; 35(7):1700-11. PMID: 18062547; PMCID: PMC2486374

Howard MW, Addis KA, Jing B, Kahana MJ. Semantic structure and episodic recall, in Landauer, McNamara, Dennis, & Kintsch (Eds) Handbook of Latent Semantic Analysis. Laurence Erlbaum Associates. Mahwah, NJ. 2007; 121-141.

Siekmeier PJ, Hasselmo ME, Howard MW, Coyle J. Modeling of context-dependent retrieval in hippocampal region CA1: implications for cognitive function in schizophrenia. Schizophr Res. 2007 Jan; 89(1-3):177-90.View Related Profiles.

Howard, Marc
Hasselmo, Michael

PMID: 17055702; DOI: 10.1016/j.schres.2006.08.007;

Zaromb FM, Howard MW, Dolan ED, Sirotin YB, Tully M, Wingfield A, Kahana MJ. Temporal associations and prior-list intrusions in free recall. J Exp Psychol Learn Mem Cogn. 2006 Jul; 32(4):792-804. PMID: 16822147; DOI: 10.1037/0278-7393.32.4.792;

Howard MW, Kahana MJ, Wingfield A. Aging and contextual binding: modeling recency and lag recency effects with the temporal context model. Psychon Bull Rev. 2006 Jun; 13(3):439-45. PMID: 17048728; PMCID: PMC1764618

Howard MW, Bessette-Symons B, Zhang Y, Hoyer WJ. Aging selectively impairs recollection in recognition memory for pictures: evidence from modeling and receiver operating characteristic curves. Psychol Aging. 2006 Mar; 21(1):96-106. PMID: 16594795; PMCID: PMC1749613; DOI: 10.1037/0882-7974.21.1.96;

Schwartz G, Howard MW, Jing B, Kahana MJ. Shadows of the past: temporal retrieval effects in recognition memory. Psychol Sci. 2005 Nov; 16(11):898-904. PMID: 16262777; PMCID: PMC2486375; DOI: 10.1111/j.1467-9280.2005.01634.x;

Howard MW, Natu VS. Place from time: Reconstructing position from a distributed representation of temporal context. Neural Netw. 2005 Nov; 18(9):1150-62. PMID: 16198538; PMCID: PMC1444898; DOI: 10.1016/j.neunet.2005.08.002;

Kahana MJ, Howard MW. Spacing and lag effects in free recall of pure lists. Psychon Bull Rev. 2005 Feb; 12(1):159-64. PMID: 15948289

Howard MW, Fotedar MS, Datey AV, Hasselmo ME. The temporal context model in spatial navigation and relational learning: toward a common explanation of medial temporal lobe function across domains. Psychol Rev. 2005 Jan; 112(1):75-116.View Related Profiles.

Howard, Marc
Hasselmo, Michael

PMID: 15631589; PMCID: PMC1421376; DOI: 10.1037/0033-295X.112.1.75;

Howard MW. Scaling behavior in the temporal context model. Journal of Mathematical Psychology. 2004; 48(4):230-238. View Publication

Howard MW, Rizzuto DS, Caplan JB, Madsen JR, Lisman J, Aschenbrenner-Scheibe R, Schulze-Bonhage A, Kahana MJ. Gamma oscillations correlate with working memory load in humans. Cereb Cortex. 2003 Dec; 13(12):1369-74. PMID: 14615302

Sederberg PB, Kahana MJ, Howard MW, Donner EJ, Madsen JR. Theta and gamma oscillations during encoding predict subsequent recall. J Neurosci. 2003 Nov 26; 23(34):10809-14. PMID: 14645473

Sherman SJ, Atri A, Hasselmo ME, Stern CE, Howard MW. Scopolamine impairs human recognition memory: data and modeling. Behav Neurosci. 2003 Jun; 117(3):526-39.View Related Profiles.

Howard, Marc
Hasselmo, Michael

PMID: 12802881

Howard MW, Kahana MJ. A distributed representation of temporal context. Journal of Mathematical Psychology. 2002; 46(3):269-299. View Publication

Kahana MJ, Howard MW, Zaromb F, Wingfield A. Age dissociates recency and lag recency effects in free recall. J Exp Psychol Learn Mem Cogn. 2002 May; 28(3):530-40. PMID: 12018505

Howard MW, Kahana MJ. When does semantic similarity help episodic retrieval?. Journal of Memory and Language. 2002; 46(1):85-98. View Publication

Howard MW, Kahana MJ. Contextual variability and serial position effects in free recall. J Exp Psychol Learn Mem Cogn. 1999 Jul; 25(4):923-41. PMID: 10439501

This graph shows the total number of publications by year, by first, middle/unknown, or last author.

Bar chart showing 75 publications over 24 distinct years, with a maximum of 9 publications in 2018