Paul J. Zak publications per year

The chart shows the history of publications by Paul J. Zak between 1958 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Paul J. Zak published across 68 years, from 1958 to 2025, averaging 2.2 papers a year. Output peaked at 12 publications in 2002. 9 of the 147 publications appeared in the last two years.

No. of publications

5 10

1958 2025

147 publications in total across all disciplines

View publications per year as a table

Paul J. Zak: publications per year, 1958 to 2025
Year	Publications
1958	1
1959	0
1960	0
1961	0
1962	0
1963	0
1964	0
1965	0
1966	0
1967	0
1968	0
1969	0
1970	0
1971	0
1972	0
1973	0
1974	0
1975	0
1976	0
1977	0
1978	0
1979	0
1980	0
1981	0
1982	0
1983	0
1984	0
1985	0
1986	0
1987	0
1988	0
1989	0
1990	0
1991	1
1992	1
1993	0
1994	0
1995	1
1996	0
1997	0
1998	4
1999	7
2000	4
2001	3
2002	12
2003	7
2004	3
2005	8
2006	4
2007	4
2008	7
2009	4
2010	6
2011	3
2012	5
2013	6
2014	1
2015	7
2016	2
2017	9
2018	6
2019	4
2020	4
2021	4
2022	7
2023	3
2024	5
2025	4
Total	147

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Paul J. Zak publication distribution in Social Sciences and Humanities in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Social Sciences and Humanities in 2026. The highlighted bar marks where Paul J. Zak sits on this spectrum.

No. of scientists

100 200 300 400

44–53 publications 570+

This scientist: 130 publications — 31st percentile

31% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 570 publications or more.

View publications distribution as a table

Number of Social Sciences and Humanities scientists by publication count, Research.com 2026 ranking edition. Based on 7,777 ranked scientists.
Publications	Scientists	This scientist
44–53	28
54–63	61
64–73	161
74–83	225
84–93	301
94–103	390
104–113	406
114–123	474
124–133	453	130
134–143	434
144–153	407
154–163	411
164–173	391
174–183	313
184–193	319
194–203	304
204–213	285
214–223	246
224–233	213
234–243	170
244–253	167
254–263	162
264–273	138
274–283	138
284–293	113
294–303	106
304–313	95
314–323	101
324–333	81
334–343	69
344–353	56
354–363	36
364–373	42
374–383	41
384–393	44
394–403	27
404–413	30
414–423	20
424–433	29
434–443	29
444–453	25
454–463	19
464–473	21
474–483	11
484–493	17
494–503	7
504–513	6
514–523	12
524–533	10
534–543	7
544–553	6
554–563	12
564–569	8
570+	100

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Paul J. Zak D-index placement in Social Sciences and Humanities in 2026

The chart shows the D-index (discipline H-index) distribution of Social Sciences and Humanities scientists ranked by Research.com in 2026. The highlighted bar marks where Paul J. Zak sits on this spectrum.

No. of scientists

100 200 300

30 D-Index 100+

This scientist: 43 D-Index — 46th percentile

46% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 100 D-Index or more.

View D-Index distribution as a table

Number of Social Sciences and Humanities scientists by D-index, Research.com 2026 ranking edition. Based on 7,777 ranked scientists.
D-Index	Scientists	This scientist
30	177
31	210
32	222
33	188
34	181
35	243
36	261
37	272
38	278
39	300
40	297
41	308
42	313
43	300	43
44	269
45	260
46	228
47	251
48	203
49	186
50	187
51	166
52	138
53	141
54	131
55	137
56	109
57	129
58	95
59	105
60	106
61	86
62	94
63	77
64	79
65	59
66	68
67	51
68	49
69	40
70	43
71	40
72	50
73	46
74	43
75	45
76	45
77	30
78	25
79	31
80	29
81	18
82	21
83	26
84	15
85	15
86	19
87	19
88	12
89	7
90	19
91	20
92	13
93	9
94	13
95	8
96	7
97	6
98	6
99	6
100+	97

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Overview

Paul J. Zak is affiliated with Claremont Graduate University in the United States. Their research spans across various areas within psychology, with a focus on experimental and cognitive approaches.

The main fields of study for Paul J. Zak include:

Psychology

Within Psychology, key subfields of study are:

Social Psychology
Cognitive Neuroscience
Experimental and Cognitive Psychology
Applied Psychology
Sociology and Political Science

The primary topics in their research cover:

Evolutionary Psychology and Human Behavior
Neuroendocrine regulation and behavior
Behavioral Health and Interventions
Psychology of Moral and Emotional Judgment
Neural and Behavioral Psychology Studies
Attachment and Relationship Dynamics
Mind wandering and attention

Paul J. Zak has published several recent papers, including:

Autonomy Raises Productivity: An Experiment Measuring Neurophysiology (2020) in Frontiers in Psychology
Oxytocin Release Increases With Age and Is Associated With Life Satisfaction and Prosocial Behaviors (2022) in Frontiers in Behavioral Neuroscience
Neonatal male circumcision is associated with altered adult socio-affective processing (2020) in Heliyon
Elevated plasma oxytocin levels and higher satisfaction with life in young oral contraceptive users (2020) in Scientific Reports
Continuous Neurophysiologic Data Accurately Predict Mood and Energy in the Elderly (2022) in Brain Sciences

The most frequent publication venues for Paul J. Zak include:

Frontiers in Behavioral Neuroscience
Frontiers in Psychology
PLoS ONE
ICPSR Data Holdings
Heliyon

Frequent co-authors in their work are:

Jorge A. Barraza
Michael Winterdahl
Xinbo Hu
Rebecca Johannsen
Elizabeth T. Terris

Best Publications

Oxytocin increases trust in humans

Michael Kosfeld;Markus Heinrichs;Paul J. Zak;Urs Fischbacher

5278
Citations
Trust and Growth

Paul J. Zak;Stephen Knack

4667
Citations
Oxytocin Increases Generosity in Humans

Paul J. Zak;Angela Stanton;Sheila Ahmadi

1281
Citations
Oxytocin is associated with human trustworthiness.

Paul J. Zak;Robert Kurzban;William T. Matzner

890
Citations
Empathy toward Strangers Triggers Oxytocin Release and Subsequent Generosity

Jorge A. Barraza;Paul J. Zak

664
Citations
The Neurobiology of Trust

Paul J. Zak;Paul J. Zak;Robert Kurzban;William T. Matzner

452
Citations
Building Trust: Public Policy, Interpersonal Trust, and Economic Development

Stephen Knack;Paul J. Zak

432
Citations
Political risk and capital flight

Quan Vu Le;Paul J. Zak

355
Citations
Testosterone administration decreases generosity in the ultimatum game.

Paul J. Zak;Robert Kurzban;Sheila Ahmadi;Ronald S. Swerdloff

344
Citations
Massage increases oxytocin and reduces adrenocorticotropin hormone in humans.

Morhenn;Beavin Le;Zak Pj

291
Citations
Why inspiring stories make us react: the neuroscience of narrative.

Paul J Zak

290
Citations
Trust and Growth

Paul J. Zak;Stephen Knack

264
Citations
Oxytocin Levels in Social Anxiety Disorder

Elizabeth A. Hoge;Mark H. Pollack;Rebecca E. Kaufman;Paul J. Zak

257
Citations
Monetary sacrifice among strangers is mediated by endogenous oxytocin release after physical contact

Vera B. Morhenn;Jang Woo Park;Elisabeth Piper;Paul J. Zak;Paul J. Zak

240
Citations
The neuroscience of trust

Paul J. Zak

220
Citations
Moral Markets: The Critical Role of Values in the Economy

Paul J. Zak

215
Citations
Time-to-build and cycles

Patrick K Asea;Patrick K Asea;Paul J Zak

201
Citations
Stories vs. facts: triggering emotion and action-taking on climate change

Brandi S. Morris;Polymeros Chrysochou;Polymeros Chrysochou;Jacob Dalgaard Christensen;Jacob Lund Orquin;Jacob Lund Orquin

199
Citations
The Determinants of Democratic Transitions

Yi Feng;Paul J. Zak

194
Citations
The neurobiology of trust.

Paul J. Zak

190
Citations
Oxytocin infusion increases charitable donations regardless of monetary resources

Jorge A. Barraza;Michael E. McCullough;Sheila Ahmadi;Paul J. Zak

177
Citations

Frequent Co-Authors

Stephen Knack World Bank

Jacek Kugler Claremont Graduate University

Robert Kurzban University of Pennsylvania

Ernst Fehr University of Zurich

Robert A. Mundell Columbia University

Markus Heinrichs University of Freiburg

Urs Fischbacher University of Konstanz

Naomi M. Simon New York University

Elizabeth A. Hoge Georgetown University

Mark H. Pollack Rush University Medical Center

External Links

Personal website of Paul J. Zak

If you think any of the details on this page are incorrect, let us know.

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