World's Best Scientists 2026 revealed!

D-Index & Metrics

Psychology

D-Index
56
Citations
14581
World Ranking
4163
National Ranking
35

Heikki Summala publication distribution in Psychology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Psychology in 2026. The highlighted bar marks where Heikki Summala sits on this spectrum.

31–40 publications: 6 scientists 41–50 publications: 52 scientists 51–60 publications: 138 scientists 61–70 publications: 299 scientists 71–80 publications: 461 scientists 81–90 publications: 605 scientists 91–100 publications: 713 scientists 101–110 publications: 736 scientists 111–120 publications: 686 scientists 121–130 publications: 670 scientists 131–140 publications: 644 scientists 141–150 publications: 597 scientists 151–160 publications: 576 scientists 161–170 publications: 477 scientists 171–180 publications: 450 scientists 181–190 publications: 397 scientists 191–200 publications: 343 scientists 201–210 publications: 328 scientists 211–220 publications: 313 scientists 221–230 publications: 283 scientists 231–240 publications: 226 scientists 241–250 publications: 196 scientists 251–260 publications: 201 scientists 261–270 publications: 171 scientists 271–280 publications: 151 scientists 281–290 publications: 139 scientists 291–300 publications: 113 scientists 301–310 publications: 102 scientists 311–320 publications: 100 scientists 321–330 publications: 76 scientists 331–340 publications: 92 scientists 341–350 publications: 85 scientists 351–360 publications: 69 scientists 361–370 publications: 71 scientists 371–380 publications: 63 scientists 381–390 publications: 58 scientists 391–400 publications: 57 scientists 401–410 publications: 43 scientists 411–420 publications: 33 scientists 421–430 publications: 50 scientists 431–440 publications: 41 scientists 441–450 publications: 32 scientists 451–460 publications: 27 scientists 461–470 publications: 28 scientists 471–480 publications: 25 scientists 481–490 publications: 28 scientists 491–500 publications: 20 scientists 501–510 publications: 23 scientists 511–520 publications: 26 scientists 521–530 publications: 17 scientists 531–540 publications: 21 scientists 541–550 publications: 14 scientists 551–560 publications: 16 scientists 561–570 publications: 10 scientists 571–580 publications: 22 scientists 581–590 publications: 9 scientists 591–600 publications: 14 scientists 601–610 publications: 9 scientists 611–620 publications: 11 scientists 621–630 publications: 4 scientists 631–640 publications: 7 scientists 641–650 publications: 5 scientists 651–660 publications: 10 scientists 661–670 publications: 8 scientists 671–680 publications: 8 scientists 681–690 publications: 4 scientists 691–700 publications: 3 scientists 701–704 publications: 4 scientists 705+ publications: 100 scientists
31 publications 705+

This scientist: 135 publications — 41st percentile

41% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 705 publications or more.

Heikki Summala D-index placement in Psychology in 2026

The chart shows the D-index (discipline H-index) distribution of Psychology scientists ranked by Research.com in 2026. The highlighted bar marks where Heikki Summala sits on this spectrum.

30–31 D-Index: 398 scientists 32–33 D-Index: 702 scientists 34–35 D-Index: 671 scientists 36–37 D-Index: 659 scientists 38–39 D-Index: 641 scientists 40–41 D-Index: 671 scientists 42–43 D-Index: 617 scientists 44–45 D-Index: 558 scientists 46–47 D-Index: 495 scientists 48–49 D-Index: 487 scientists 50–51 D-Index: 445 scientists 52–53 D-Index: 390 scientists 54–55 D-Index: 408 scientists 56–57 D-Index: 345 scientists 58–59 D-Index: 325 scientists 60–61 D-Index: 321 scientists 62–63 D-Index: 248 scientists 64–65 D-Index: 290 scientists 66–67 D-Index: 218 scientists 68–69 D-Index: 219 scientists 70–71 D-Index: 215 scientists 72–73 D-Index: 183 scientists 74–75 D-Index: 169 scientists 76–77 D-Index: 132 scientists 78–79 D-Index: 137 scientists 80–81 D-Index: 120 scientists 82–83 D-Index: 112 scientists 84–85 D-Index: 86 scientists 86–87 D-Index: 101 scientists 88–89 D-Index: 83 scientists 90–91 D-Index: 77 scientists 92–93 D-Index: 70 scientists 94–95 D-Index: 78 scientists 96–97 D-Index: 58 scientists 98–99 D-Index: 53 scientists 100–101 D-Index: 57 scientists 102–103 D-Index: 48 scientists 104–105 D-Index: 53 scientists 106–107 D-Index: 46 scientists 108–109 D-Index: 24 scientists 110–111 D-Index: 35 scientists 112–113 D-Index: 27 scientists 114–115 D-Index: 32 scientists 116–117 D-Index: 31 scientists 118–119 D-Index: 22 scientists 120–121 D-Index: 16 scientists 122–123 D-Index: 24 scientists 124–125 D-Index: 18 scientists 126–127 D-Index: 11 scientists 128–129 D-Index: 19 scientists 130–131 D-Index: 10 scientists 132–133 D-Index: 16 scientists 134–135 D-Index: 10 scientists 136–137 D-Index: 12 scientists 138–139 D-Index: 8 scientists 140–141 D-Index: 5 scientists 142–143 D-Index: 12 scientists 144+ D-Index: 98 scientists
30 D-Index 144+

This scientist: 56 D-Index — 64th percentile

64% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 144 D-Index or more.

Overview

Heikki Summala is affiliated with the University of Helsinki in Finland. Their academic profile reflects involvement primarily within this institution.

No recent papers, frequent co-authors, or publication venues are recorded for this scientist based on the current available data.

There is no detailed information on specific fields of study, subfields, or main topics of research work associated with Heikki Summala.

There is no record of book publications or awards received as per the present information.

The scope of research and career details suggest an active association with academic work, although specific contributions, thematic coverage, and collaborative networks are not documented here.

Best Publications

  • Road User Behaviour and Traffic Accidents

    R Naeaetaenen;H Summala

  • Can we trust self-reports of driving? Effects of impression management on driver behaviour questionnaire responses

    Timo Juhani Lajunen;Heikki Summala

  • Cognitive load and detection thresholds in car following situations: safety implications for using mobile (cellular) telephones while driving.

    Dave Lamble;Tatu Kauranen;Matti Laakso;Heikki Summala

  • The Manchester Driver Behaviour Questionnaire: a cross-cultural study

    Timo Juhani Lajunen;Dianne Parker;Heikki Summala

  • Driving experience, personality, and skill and safety-motive dimensions in drivers' self-assessments

    Timo Juhani Lajunen;Heikki Summala

  • A model for the role of motivational factors in drivers' decision-making

    Risto Näätänen;Heikki Summala

  • Cross-cultural differences in driving behaviours: A comparison of six countries

    Türker Özkan;Timo Juhani Lajunen;Joannes E. Chliaoutakis;Dianne Parker

  • RISK CONTROL IS NOT RISK ADJUSTMENT: THE ZERO-RISK THEORY OF DRIVER BEHAVIOUR AND ITS IMPLICATIONS

    Heikki Summala

  • Fatal accidents among car and truck drivers: effects of fatigue, age, and alcohol consumption

    Heikki Summala;Timo Mikkola

  • Maintaining Lane Position with Peripheral Vision during In-Vehicle Tasks

    Heikki Summala;Tapio Nieminen;Maaret Punto

  • Attention and expectation problems in bicycle-car collisions: an in-depth study.

    Mikko Räsänen;Heikki Summala

  • Driving experience and time-sharing during in-car tasks on roads of different width

    Anna-Stina Wikman;Tapio Nieminen;Heikki Summala

  • Accident risk and driver behaviour

    Heikki Summala

  • Road user behavior and traffic accidents

    Risto Näätänen;Heikki Summala

  • Bicycle accidents and drivers' visual search at left and right turns.

    Heikki Summala;Eero Pasanen;Mikko Räsänen;Jukka Sievänen

  • Brake reaction times and driver behavior analysis

    Heikki Summala

  • Interpersonal violations, speeding violations and their relation to accident involvement in Finland.

    Jolieke Mesken;Timo Juhani Lajunen;Heikki Summala

  • Effects of weather and weather forecasts on driver behaviour

    Markku Kilpeläinen;Heikki Summala

  • DRIVING EXPERIENCE AND PERCEPTION OF THE LEAD CAR'S BRAKING WHEN LOOKING AT IN-CAR TARGETS

    Heikki Summala;Dave Lamble;Matti Laakso

  • Towards Understanding Motivational and Emotional Factors in Driver Behaviour: Comfort Through Satisficing

    Heikki Summala

  • Driver Behaviour Questionnaire: a follow-up study

    Türker Özkan;Timo Juhani Lajunen;Heikki Summala

Frequent Co-Authors

Timo Lajunen
Timo Lajunen Norwegian University of Science and Technology
Risto Näätänen
Risto Näätänen University of Tartu
Dianne Parker
Dianne Parker University of Manchester
Marianna Virtanen
Marianna Virtanen University of Eastern Finland
Markku Partinen
Markku Partinen University of Helsinki
Kimmo Alho
Kimmo Alho University of Helsinki
Teija Kujala
Teija Kujala University of Helsinki
David Shinar
David Shinar Ben-Gurion University of the Negev
Petri Paavilainen
Petri Paavilainen University of Helsinki
Paul M. Salmon
Paul M. Salmon University of the Sunshine Coast

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