Aug 032017
 

Robert (Bob) Teghtsoonian was not only a founding member of the International Society for Psychophysics. From the very beginning, his continuous and lively engagement in the progress of the Society was outstanding: No one else had a stronger formative influen

ce on the ISP. It was one of his major concerns to encourage young scientists and to facilitate their integration into the scientific community. Bob never put himself at the center of things. And as everybody experienced his honest interest in people and their ideas, people around him felt secure and indeed were. Bob had the uncanny ability to create an atmosphere for open and unprejudiced exchange of ideas. Whatever the occasion, he always found the right words, the right wine, and the right humor along with his inimitable welcoming smile. We experienced much of this atmosphere at the Fechner Days. I also believe it was largely due to his efforts that the Fechner Days did not degenerate into vanity but remained one of the very few academic meetings which facilitated a personal exchange of thoughts from an equal stance in an accepting atmosphere. We will miss his constant attentiveness and support, his refreshing contributions and scientific impulses.

Text: Fritz Müller

To sign a Guest Book or express condolences you may go to: http://www.legacy.com/obituaries/gazettenet/obituary.aspx?pid=186047240

In memoriam: Ragnar Steingrimsson

 In Memoriam  Comments Off on In memoriam: Ragnar Steingrimsson
Aug 032017
 

Ragnar Steingrimsson, UCI IMBS associate project scientist, dies at 50

Ragnar Steingrimsson, associate project scientist in the Institute for Mathematical Behavioral Sciences at University of California at Irvine, passed away in his sleep on May 22. He was 50.

Steingrimsson received his Ph.D. in cognitive sciences from UCI in 2002 and went on to complete postdoctoral work on the Irvine campus and at New York University before starting work full time at UCI’s Institute for Mathematical Behavioral Sciences as an assistant project scientist. Alongside renowned cognitive scientists Duncan Luce and Louis Narens, Steingrimsson pursued research on subjective evaluation of sensory intensities – how people understand loudness, brightness, pain and other senses. At the time of his death, he was working to provide scientific evidence for a comprehensive theory of Luce’s that explained and integrated judgments of intensity within and across sensory domains. 

“As a graduate student in cognitive sciences, Ragnar did his doctoral dissertation under the guidance of Duncan,” says Louis Narens, cognitive sciences professor. “Duncan developed new mathematical techniques to study how people understand and experience senses – and Ragnar developed experimental techniques to test Duncan’s theories. Together, they published many papers in top psychology journals and developed important new methodologies for conducting psychophysical research.”

Among them: Psychological Review, Journal of Mathematical Psychology, Journal of American Psychology, and Attention, Perception & Psychophysics.

Steingrimsson also studied under cognitive sciences professors David Laberge and Jean-Claude Falmagne where he focused on attention and psychophysics and knowledge spaces, respectively. Throughout his postdoctoral positions at UCI, his research was continuously funded by the National Science Foundation and Air Force Office of Scientific Research.

Steingrimsson was an avid runner and a native of Iceland. He earned a certificate in French language at the University of Paris, Sorbonne in 1989, and then headed to the University of Copenhagen, Denmark where he earned his bachelor’s in film and communication in 1991 and his bachelor’s in computer science in 1992. He came to Chapman University in Orange, California where he earned an MFA in 1994 and his master’s in English in 1995. He then joined the UCI Department of Cognitive Sciences graduate program, earning his master’s in 1998 and his Ph.D. in 2002.

During his 22-year association with UCI, Steingrimsson also worked remotely as a senior research scientist for the Northwest Evaluation Association (2013-16), an adjunct professor of psychology for New York University (2004-05), and a research scientist at Ohio State University (2017).

 

Text provided by Kimberly A. Jameson

Fechner Day 2017

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Feb 072017
 

The 33rd annual meeting of the international society for Psychophysics will be held in Fukuoka, Japan, 22-26 October 2017. Please note down the key dates of the conference:

  • Friday, 7 April 2017: Deadline for symposium proposals.
  • Friday, 5 May 2017: Deadline for submission of free talks, posters, and stipend applications.
  • Friday, 30 June 2017: Deadline for submission of proceedings manuscripts.
  • Friday, 21 July 2017: Deadline for early registrations.
  • Friday, 22 September 2017: Deadline for registrations.

See more information at the official website.

Eugene Galanter 27 October 1924 – 9 November 2016

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Nov 142016
 

Diana Kornbrot, University of Hertfordshire

geneobit

Gene Galanter, an early and enthusiastic  member of ISP, has died peacefully after a long and heroic struggle with cancer, during which he never gave up on his scientific projects and promotion of science. He was one of the key modern founders of the cognitive psychology revolution started shortly after WWII.

He fought in WWII, a strong influence on his later life. He earned the French Legion d’Honeur, Bronze Star, Purple Heart, and Croix de Guerre with Palm, and Presidential Unit Citation.

On return from France he graduated with a BA from Swarthmore followed by a Ph.D. in psychology from the University of Pennsylvania. Collaboration with S. S. Stevens at Harvard produced the enduring Ms. Ratio Scales and Category Scales for a Dozen Perceptual Continua. A fellowship at Stanford led to his influential book Plans and the Structure of Behavior with George Miller and Karl Pribram. Collaboration with Robert Bush and Duncan Luce led to the three-volume Handbook of Mathematical Psychology. Although not easy reading, these led the way in making explicit and testable models of perception and decision-making. He worked at Harvard, University of Pennsylvania and as Chair of the Psychology Department at the University of Washington. His final move was to Columbia University where he founded the Psychophysics Laboratory and was active and innovative in theoretical research, as well as running several US government research projects.

He was an inspiring teacher. His popular undergraduate seminars continued until he was well into his 80s. He created a blueprint for teaching psychology as a science to students in all disciplines. He was a formidable Ph.D. supervisor, as I know well from exceptional personal experience. His students, their students, and their students’ students are scattered across the planet inspiring new generation of cognitive and sensory psychologists. His reach was truly international, including a fruitful year at the University of Hertfordshire inspiring UK psychologists.

Applied work, informed by theory, was of paramount importance to him. He worked for FAA, NASA, NSF, U.S. Navy and U.S. Army and received the NASA Distinguished Scientist Award. He applied theoretical psychology to education as a successful entrepreneur. In the 70s he created schools teaching BASIC on early PCs. Latterly, he founded Children’s Progress Inc., subsequently taken over Northwest Evaluation Association where it continues to positively affect children’s achievement, using the US patented Galanter Educational Evaluation Lattice, co-invented with his daughter Michelle

He was one of the greats of American psychology and will be sorely missed by his many friends and colleagues. His work lives on making a positive contribution to the lives of many people who would not even know his name.

He is survived by: his wife Patricia, daughters, Alicia, Gabrielle and Michelle, and eight grandchildren.

Fechner Day 2016 Info

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Jan 172016
 

The following PDF is Irina Skotnikova’s PowerPoint presented at Quebec, in which you may find useful information regarding to Fechner Day 2016 in Moscow.

FD2016 in Moscow

Fechner Day 2016, Moscow, Russia (15th-20th August)

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Jan 122016
 

Fechner Day 2016 – the 32nd Annual Meeting of the International Society  for Psychophysics 

 First announcement and call for papers

Dear friends and colleagues,

Happy New Year and invitation to visit Moscow in 2016!

We are pleased to send you the 1st announcement on Fechner Day 2016.

The 32nd meeting of the International Society for Psychophysics (ISP) will be held in Moscow, Russia, 15th – 20th of August, 2016.

You are invited to join us in Moscow, capital of Russia, founded in 1147 and full of famous historical and remarkable places, for Fechner Day 2016.

Please bookmark the conference’s website at http:/www.fechnerday.org and visit frequently for updates.

Venue  Continue reading »

William M. Petrusic, 1939-2014

 In Memoriam  Comments Off on William M. Petrusic, 1939-2014
Jul 062015
 

Craig Leth-Steensen*

Carleton University, Canada

bill 

 

Our very distinguished and long-standing member, Professor William (“Bill”) M. Petrusic has left us. He died on Dec. 12, 2014, at the age of 75. He is survived by his wife Elaine and his three children, Michele, Michael, and Christopher. Bill co-hosted Fechner Day 2012 in Ottawa, Canada, which sadly was his last appearance at the annual ISP conference.

Born in Hazeldell, Saskatchewan, on May 18, 1939, Bill received a BA in psychology from the University of British Columbia in 1961, an MA in mathematics from the University of Michigan in 1963, and a PhD in psychology from the University of Michigan in 1968 (where he was supervised by Clyde Coombs). After a stint at the University of British Columbia, he joined the Psychology Department at Carleton University in Ottawa, Canada as a professor in 1970 (eventually becoming a Distinguished Researcher and Professor Emeritus in 2004) where he remained until his untimely passing.

Bill’s body of scientific work encompassed (exactly) 50 publications that addressed numerous issues of key importance to psychophysical and psychological researchers. His early published research focussed on the scaling of response time latencies and the study of short-term memory. In the late 70s, Bill published a large number of studies with his student Don Jamieson that dealt with important issues within such areas as duration judgement, preference judgement, and symbolic magnitude judgment (where, hopefully, the major aspect common to all of that work is self-evident). The late 80s and 90s led to a second large body of publications co-authored by another prolific student and eventual close colleague and friend, Joe Baranski. This period yielded seminal work on the semantic congruity effect, memory psychophysics, and the rendering of confidence. Finally, during the last 10 years, Sam Shaki and myself co-authored a number of studies with Bill that served to provide a wealth of novel results pertaining to both the semantic congruity effect and the spatial-numerical association of response codes (or SNARC) effect.

Bill has left behind an enduring legacy, both as a scientist and person, which a great number of the students he has mentored over the years would love to be able to emulate. His dedication to basic scientific work and the development of theory in mathematical terms inspired the people he collaborated with and solidified a place for him in the field as a serious and important researcher. I know that I, along with many others, will dearly miss hashing out research designs and theoretical standpoints with Bill (in addition to numerous discussions surrounding the merits of various 60s-era musical performers).

Keywords: unfolding; stochastic; Dylan; Hays; memory; TOE; reference point; power law; mental rotation; feedback; counting; transitivity; analogue; difference threshold; CVC; cross-over; speed-accuracy; latency-probability; discrete accumulator; slow-and-fast guessing; hard-easy; calibration; context; evidence accrual; comparative instructions; mental number line

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* E-mail: Craig.LethSteensen@carleton.ca

Hannes Eisler, 1923-2015

 In Memoriam  Comments Off on Hannes Eisler, 1923-2015
Jul 022015
 

Åke Hellström

Stockholm University, Sweden

Hannes85fix

Our very distinguished member, Professor Hannes Eisler, Stockholm University, has left us. He died on May 28, 2015, at the age of 91. He was a member of the ISP from its beginnings. At Fechner Day 2014 in Lund, Sweden, Hannes lectured on “Some research tips from 55 years’ psychophysics.” Informally, he named this presentation his “swan song.”

Hannes was Born in Vienna, Austria, 1923, and at the age of 15 fled to Sweden to escape the Nazis. Initially Hannes worked as a farm hand but quickly progressed to study at high school and later at Stockholm University, where he became an adept of Gösta Ekman, the Swedish pioneer of quantitative psychology. After spending a year in S. S. Stevens’ lab at Harvard, Hannes was awarded his Ph.D. in Stockholm 1963. In 1994, as the result of a petition from all Swedish psychology professors, the Swedish government awarded Hannes Eisler the rank and honor of Professor – a rare recognition of scientific merit.

During his long career, Hannes authored a large number of publications and made many important contributions to our field. His doctoral dissertation was about the relation between magnitude and category scales. Later on, he turned much of his interest toward time perception in people as well as in mice. Perhaps the most impressive of his contributions is the Parallel Clock model for temporal reproduction and comparison1, which arose from Hannes’ arduous and meticulous investigation of long known anomalies in time perception; specifically, breaks in psychophysical functions. Noting the positions of those breaks in reproduction data led him to the counter-intuitive realization that participants use a seemingly odd strategy in immediate reproduction of temporal intervals: subjectively matching the reproduction, not to the standard, but to one-half of the total duration. Using this model it is possible to estimate the psycho-physical function for time from reproduction data, and Hannes published a huge collection of temporal power function exponents2 – much cited but all too often with no understanding of how they were determined.

Hannes was intellectually perspicacious and possessed research talent in abundance. Modes-ty, good nature, along with deep and diverse cultural interests, sense of humor, and appreci-ation of the good things in life, were some of his other characteristics. Scientific seminars on various topics were enriched by his insightful comments until a heart attack sadly ended his long life.

I miss Hannes immensely, as a very good old friend, a respected senior colleague, and a mentor – even the word guru feels very appropriate.

References

  1. Eisler, H. (1975). Psychological Review, 82, 429-450.
  2. Eisler, H. (1976). Psychological Bulletin, 83, 1154-1171.

William M. Petrusic (1939-2014)

 In Memoriam  Comments Off on William M. Petrusic (1939-2014)
Apr 172015
 

Craig Leth-Steensen and Jordan Schoenherr Carleton University, Ottawa

Steven Carroll
St. Mary’s University, Halifax

William M. (“Bill”) Petrusic received a BA in psychology from the University of British Columbia in 1961, an MA in mathematics from the University of Michigan in 1963, and a PhD in psychology from the University of Michigan in 1968 (where he was supervised by Clyde Coombs). After a stint at the University of British Columbia, he joined the Psychology Department at Carleton University in Ottawa, Canada as a professor in 1970 (eventually becoming a Distinguished Researcher and Professor Emeritus in 2004) where he remained until his untimely passing. Bill was longstanding member of the International Society for Psychophysics and recently served as its Treasurer from 2006-2012.

Throughout his career, Bill had a profound influence on countless students and colleagues. Indeed, Bill was responsible for both introducing his students to real psychological science (i.e., psychophysics) and then encouraging them to become fully engaged in this great field. Undoubtedly, each one of the individuals that he mentored feels eternally grateful that they were able to cross paths with such a fountain of scientific knowledge (in Ottawa, Canada of all places). In dealing with and learning from Bill, one always felt directly connected to the rich history of both quantitative and empirical psychological inquiry (whether that be Thurstonian scaling or Münsterberg’s early study of reaction time).

Bill’s body of scientific work encompassed numerous key areas of research including the study of time-order error, symbolic comparison, memory psychophysics, confidence processing, the semantic congruity and spatial numerical association of response codes (SNARC) effects, as well as the psychophysical processes underlying judgement and decision making. Much of his work was dedicated to specifying basic psychological processes in mathematical terms. One enduring legacy of Bill’s will most certainly be that he can be regarded as champion of stochastic evidence-accrual modeling of decision making. Indeed, much of the work he performed over the last 25 years was dedicated to demonstrating that static models of responding in perceptual and cognitive choice tasks were invariably inferior to models which postulated a dynamic accumulation of information over time (such as his rather ingenious slow-and-fast-guessing counter model).

On a personal level, all would agree that Bill was an incredibly gracious and generous supervisor and friend whom others would go out of their way to spend time with. Dinners with him were to be looked forward to and remembered afterwards. Adventurous in life as well as science, Bill was always ready to go regardless of what kind of crazy endeavour was being cooked up for that evening. Apart from science, Bill loved music, wine, cooking, and his lovely and always supportive wife Elaine. Bill’s passing has left many of us with something missing in our lives that we will simply not be able to replace.

Jordan Schoenherr – Reflections on Bill Petrusic

Dr. Bill was a giant of a man both in stature and intellect. My first experience with Bill was as an undergraduate statistics student. His Bob Dylan quotes suggested to me someone with deep convictions and a wry sense of humour – someone that understood the pluralities of life. He showed this through kindness and decency toward each of his students, grappling with ethical questions and always endeavouring to do the right thing rather than what was convenient or conventional. I soon realized that Bill presented an exemplar that I could only hope to emulate imperfectly. Students, including myself, were the beneficiaries of his experience as he gave us the opportunity to try and fail without judgment or condescension, a method that emboldened each of us to be persistent in our pursuits. During my time with Bill as an undergraduate and Master’s student, I learned deeper lessons than research and experimental design. Through him, I came to know the virtues of academia and psychological science, something that is difficult to teach and even harder to learn. Given the probability of meeting someone like Bill, I am lucky for having had the chance to know him. He truly made a significant difference in my life.

Steven Carroll – Meeting Bill Petrusic

I have a lot of fond memories of Bill, and it is difficult to put into words the many ways that he has influenced both my personal and professional life. A student’s relationship with Bill did not end in his classrooms or in his lab. If Bill took you under his wing, it meant spending time socializing with him at conferences, in this home, and at the Pub. But with so many professional and social interactions to choose from, I would like to share the story of how I met Dr. Petrusic. I think that I learned just about everything that I needed to know about the man’s character during those first 15 minutes.

On September 11th, 2001, I was an undergraduate student, working full time and taking night classes at Carleton University. The news reports started rolling in from New York during my commute to work and, as I’m sure many of you will recall, the ceaseless flow of information grew more intense and more frightening as the day wore on. By the time I started making my way to school for my PSYC 3000 Advanced Statistics class, the ambient anxiety in Ottawa was palpable. Nobody knew who was responsible for the attacks. Nobody knew how the U.S. was going to react. The phrase “World War III” was being nervously passed around the classroom when I arrived. Absolutely everyone was certain that the class would be cancelled.

Into this atmosphere walked a Hawaiian-shirt clad, white-bearded, pony-tail sporting… well, if I’m being perfectly honest, “hippie” was the word that sprung to mind. We all quietly watched him settle in at the front of the classroom. The very first words spoken to me by Bill Petrusic were these: “I want you all to know that I am very aware of the day’s tragic events. I seriously considered cancelling class this evening. But, in the end, I decided that it was probably best for all of us if we just work through this together.” At this point he proceeded to administer an algebra test and informed us that we had 15 minutes to complete it before we moved on with the day’s lecture.

I don’t know how other people responded to his actions. I do know that by the end of the lecture I was feeling better, if a bit embarrassed that I’d forgotten how to divide one fraction by another. I also know that, from that day forward, EVERY time that I’ve been faced with any real stress or anxiety in my life, I’ve reached for a textbook and have tried to teach myself something

new. I’ve learned a lot from Bill, but I think the thing that I’ve learned best was the value of learning for learning’s sake.

I also know that I went on to do my Honours, Masters, and PhD work with Bill and that I pretty much decided to do so right after that first class. He was happy. He was generous. He was wise. He was a fantastic teacher. I miss him.