The relation between size and apparent heaviness

Attention, Perception, & Psychophysics - A formula for the size-weight illusion was derived from the Stevens and Rubin (1970) finding that heaviness functions form a family of power functions...     

Incongruity versus tension relief

Three experiments employing weight-judgment tasks with the method of constant stimuli were conducted to test between incongruity and tension relief hypotheses of humor. In the first two experiments, the difficulty of the initial judgments and the heaviness of the final comparison weight were varied in order to manipulate tension and incongruity, respectively. Incongruity but not tension manipulations affected both facial expressions and ratings of humor. A third experiment varied the subjects' expectations about the heaviness of the final comparison weight, which was assumed to affect incongruity but not tension. The expectancy manipulations affected facial expressions and ratings of humor. The results of all three experiments supported the incongruity hypothesis but not the relief hypothesis of humor.     

Human Psychophysical Functions,an Update: Methods for Identifying their form; Estimating their Parameters; and Evaluating the Effects of Important Predictors

Stevens’ power law for the judgments of sensation has a long history in psychology and is used in many psychophysical investigations of the effects of predictors such as group or condition. Stevens’ formulation \(\varPsi = {aP}^{n}\), where \(\varPsi \) is the psychological judgment, P is the physical intensity, and \(n\) is the power law exponent, is usually tested by plotting log \((\varPsi )\) against log (P). In some, but by no means all, studies, effects on the scale parameter, \(a\), are also investigated. This two-parameter model is simple but known to be flawed, for at least some modalities. Specifically, three-parameter functions that include a threshold parameter produce a better fit for many data sets. In addition, direct non-linear computation of power laws often fit better than regressions of log-transformed variables. However, such potentially flawed methods continue to be used because of assumptions that the approximations are “close enough” as to not to make any difference to the conclusions drawn (or possibly through ignorance the errors in these assumptions). We investigate two modalities in detail: duration and roughness. We show that a three-parameter power law is the best fitting of several plausible models. Comparison between this model and the prevalent two parameter version of Stevens’ power law shows significant differences for the parameter estimates with at least medium effect sizes for duration.     

Influence of hue,value, and chroma on the perceived heaviness of colors

In addition to its information content, color iz known to have certain affective qualities. We have investigated the assertion that colors have different apparent weights using a magnitude estimation technique. We find that the apparent heaviness of colors is an increasing function of ehroma or saturation and a decreasing function of value or lightness. Hue has little influence on the apparent weight of color.     

Determining Risk in Pediatric Research with No Prospect of Direct Benefit: Time for a National Consensus on the Interpretation of Federal Regulations

United States federal regulations for pediatric research with no prospect of direct benefit restrict institutional review board (IRB) approval to procedures presenting: 1) no more than “minimal risk” (§ 45CFR46.404); or 2) no more than a “minor increase over minimal risk” if the research is commensurate with the subjects' previous or expected experiences and intended to gain vitally important information about the child's disorder or condition (§ 45CFR46.406) (DHHS 2001). During the 25 years since their adoption, these regulations have helped IRBs balance subject protections with the pursuit of scientific knowledge to advance children's welfare. At the same time, inconsistency in IRB application of these regulations to pediatric protocols has been widespread, in part because of the ambiguity of the regulatory language. During the past decade, three federally-charged committees have addressed these ambiguities: 1) the National Human Research Protections Advisory Committee (NHRPAC) (Washington, DC), 2) the Institute of Medicine (IOM) Committee on the Ethical Conduct of Clinical Research Involving Children (Washington, DC); and 3) the United States Department of Health and Human Services Secretary's Advisory Committee for Human Research Protections (SACHRP) (Washington, DC). The committees have reached similar conclusions on interpretation of language within regulations § § 45CFR46.404 and 406; these conclusions are remarkably consistent with recent international recommendations and those of the original National Commission for the Protection of Human Subjects of Biomedical and Behavioral Research (1977) National Commission for the Protection of Human Subjects of Biomedical and Behavioral Research. 1977. Report and recommendations: Research involving children, Washington, DC: U.S. Government Printing Office.  [Google Scholar] report from which current regulations are based. Drawing on the committees' public reports, this article identifies the ethical issues posed by ambiguities in regulatory language, summarizes the committees' deliberations, and calls for a national consensus on recommended criteria.     

Leg Perception of Object Heaviness

ABSTRACT

Perceived heaviness is a function of both the muscle activity used to wield an object and the resulting movement. Wielding reveals invariant properties of the effector-object system, such as rotational inertia. Recent research has proposed a psychophysiological mechanism for perceiving the heaviness of a handheld object through dynamic touch that captures how arm muscle activity and angular movement combined reveal this invariance (Waddell, Fine, Likens, Amazeen & Amazeen, 2016 Waddell, M. L., Fine, J. M., Likens, A. D., Amazeen, E. L., & Amazeen, P. G. (2016). Perceived heaviness in the context of Newton's Second Law: Combined effects of muscle activity and lifting kinematics. Journal of Experimental Psychology: Human Perception and Performance, 42, 363–374.[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). The current study extends this hypothesis by investigating the dynamics of heaviness perception with the leg. Participants lifted objects of varying mass with knee extension lifts while reporting perceived heaviness. During each lift, the electromyogram (EMG) was recorded from the quadriceps, and peak angular acceleration was recorded about the knee. The resulting psychophysiological function revealed the hypothesized ratio of muscle activity to movement, similar to that found in Waddell et al. (2016) Waddell, M. L., Fine, J. M., Likens, A. D., Amazeen, E. L., & Amazeen, P. G. (2016). Perceived heaviness in the context of Newton's Second Law: Combined effects of muscle activity and lifting kinematics. Journal of Experimental Psychology: Human Perception and Performance, 42, 363–374.[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]. This suggests that the dynamics for heaviness perception in the leg is similar to that shown in the arm in previous work.     

Recommendations on experimentation with children: Some differences in Canadian and American approaches

Research on children raises major ethical issues, the most important being the inability of the subjects to provide freely given informed consent. Committees in Canada and the United States charged with formulating recommendations for the protection of human subjects in research came to some fundamentally different conclusions. Two of these are discussed as they apply to children: first the distinction between therapeutic and non-therapeutic research, recognized implicitly by the National Commission (U.S.A.) and deliberately avoided by the Medical Research Council Working Group (Canada); and second, the looser relation between local committees and Council as defined by guidelines in Canada and the tighter relation between the institutional review committees and the Department of Health, Education and Welfare defined by regulations in the United States.     

Microprocessor uses in a timeshared facility

A number of topics are discussed that are related to developing computer-controlled laboratories in which microprocessors and host machines interact. Experiences are derived from work at the Learning Research and Development Center, University of Pittsburgh.     

Report on the National Commission: Good as gold

The National Commission for the Protection of Human Subjects of Bio-medical and Behavioral Research ended its work by substantially endorsing the status quo which places primary reliance on local Institutional Review Boards for subject protection. This was predictable because of the commission's researcher-dominated composition which permitted it to assume that(1) research is good;(2) experimentation is almost never harmful to subjects; and (3) researcher-dominated IRBs can adequately protect the interests of human subjects. The successor Presidential Commission can learn much by reexamining these premises.     

Children's understanding of religion: Interviews with Arab-Muslim,Asian-Muslim,Christian and Hindu children aged 5–11 years

Research into children's awareness of group differences has been an active area of research for some time, with work focusing on areas such as nationality, ethnicity, gender and religion. The majority of the work in these areas has taken the cognitive-constructivist framework as a background, offering a domain-general approach to all social cognition. This paper reports a qualitative study investigating children's understanding of religion and the importance of religion, broadly following an interview schedule based on Verbit's (1970 Verbit, MF. 1970. “The components and dimensions of religious behaviour: Toward a reconceptualisation of religiosity”. In American Mosaic, Edited by: Hammond, PE and Johnson, B. 124–139. New York: Random House. (Eds.) [Google Scholar]) definition of religion. A semi-structured interview procedure was used with 58 Arab Muslim, Asian Muslim, Christian, and Hindu children aged between 5 and 11 years living in North London. Religion appeared to be highly salient to the children interviewed, and findings suggested that children's religious identity is subject to a complex pattern of influences which cannot be solely explained by either age or cognitive differences.     

Sex stereotypes: Issues of change in the 1970s

A sample of 128 college males and females rated a typical and desirable man or woman on 54 items taken from the Personal Attributes Questionnaire (PAQ). Comparisons of the ratings of a typical man versus a typical woman yielded significant differences (p<.01) on 53 of the 54 items. Thus, stereotypes of the sexes apparently remained strong during the 1970s. Comparisons of the ratings of a desirable man versus desirable woman yielded significant differences on only 12 of the 54 items. These results are interpreted as reflecting a difference between stereotypes (of the typical person) and attitudes (about desirable characteristics). While atttitudes may have changed in the 1970s, stereotypes remained remarkably stable.     

Prediction of choice reaction time from information of individual stimuli

A model is developed to predict the reaction time to stimuli using information content of the individual stimuli. Review of previous research in the area showed inconsistencies due possibly to the mode of stimulus presentation or to the number of stimuli. Two experiments designed to cover the range of variables used in previous experiments were conducted. The results indicate that the model makes accurate predictions over the entire range of variables used. A comparison to earlier studies also indicates a close correspondence. nt|mis|Acknowledgment is due the Office of Naval Research which supported this research through a prime contract, NOnr 2512(00), with General Dynamics Electric Boat Division as a part of the SUBIC. (SUBmarine Integrated Control) program.     

Binaural summation of loudness: Noise and two-tone complexes

A series of six experiments used the method of magnitude estimation to assess how the two ears sum the loudness of stimuli with various spectra. The results showed that the binaural system sums loudnesses by at least two distinct sets of rules, one applicable to narrow-band stimuli (complete loudness summation), another to wide-band noises (partial summation, dependent on level). The main findings were: (1) Narrow-band noise (Vi-octave bands at 1,000 Hz) showed complete binaural loudness summation, like that previously reported for pure tones (Marks, 1978a). At all but low SPL, a monaural stimulus must be 10 dB greater than a binaural stimulus to be equally loud; a stimulus ratio of 10 dB corresponds to a loudness ratio of 2:1 on Stevens’ sone scale. (2) Wide-band noise (300-4,800 Hz) showed only partial summation, the subadditivity being confined largely to levels below about 60 dB SPL. This result obtained both with bands of white noise (flat spectrum) and pink noise (—3 dB/ octave). (3) Binaural summation of two-tone complexes depended slightly on frequency spacing. Narrow spacing (860 and 1,160 Hz) gave summation equal to about 10 dB, like that of narrowband noises and single tones, whereas wider spacing (675 and 1,475 Hz) gave less summation, equal to about 9 dB, and more like wide-band noise; however, a very wide spacing (300 and 4,800 Hz) gave summation like that of narrow-band noises and single pure tones.     

Heidegger,Hermeneutics and History: Undermining Jeff Malpas’s Philosophy of Place

Most works about the philosophy of Martin Heidegger either disregard Heidegger’s attachment to National Socialism or assume the ‘minimalist’ view that his attachment was a brief political aberration of no consequence for his philosophy. This paper contends that the minimalist view is not only factually wrong but also that its assumption promotes methodological errors and poor philosophy. To assess this contention we examine two important texts from one of the more fertile fields in current philosophy: Jeff Malpas’s Heidegger’s Topology: Being, Place, World (2006) and Heidegger and the Thinking of Place (2012). Malpas claims that Heidegger’s rejection of National Socialism spurred, or was concomitant with, new directions in his philosophy. These claims are wrong. The paper concludes that any work about Heidegger’s philosophy must first acknowledge and understand his enduring attachment to National Socialism.     

Organizing knowledge syntheses: A taxonomy of literature reviews

A taxonomy of literature reviews in education and psychology is presented. The taxonomy categorizes reviews according to: (a) focus; (b) goal; (c) perspective; (d) coverage; (e) organization; and (f) audience. The seven winners of the American Educational Research Association’s Research Review Award are used to illustrate the taxonomy’s categories. Data on the reliability of taxonomy codings when applied by readers is presented. Results of a survey of review authors provides baseline data on how frequently different types of reviews appear in the education and psychology literature. How the taxonomy might help in judging the quality of literature reviews is discussed, along with more general standards for evaluating reviews.     

Species-specific defense reactions and avoidance learning

Bolles (1970) proposed a theory of avoidance learning, the species-specific defense reaction (SSDR) hypothesis, which emphasized innate constraints on the response repertoire of rats in aversive situations and minimized the role of reinforcement in avoidance learning. The present paper describes Bolles’ (1970, 1971, 1972, 1975, 1978) development of SSDR theory and reviews the empirical tests of its assumptions and predictions. It is concluded that the SSDRs described by Bolles, along with some others, are highly probable in aversive situations but that the response repertoire is not limited to them. Further, there is strong evidence for reinforcement effects in the establishment and maintenance of at least some avoidance responses.     

The use of microprocessors in a timeshared computer facility for research,development, and teaching

The use of microprocessors in a timeshared computer facility at the Learning Research and Development Center, University of Pittsburgh, is described for applications in research, development, and teaching. Modes of usage are described, as are the advantages of microprocessor interfaces for on-line experimentation.     

NLSDBA: The National Longitudinal surveys on compact disk

The National Longitudinal Survey of Labor Market Experience of Youth (NLSY) is an ongoing study of 12,686 young men and women who were aged 14 to 21 as of January 1, 1979. Over the years, the respondents have answered a wide variety of over 26,000 questions about their work experience, military experience, training, schooling, family background, marital status, income and assets, health, fertility, child care, and drug and alcohol abuse. The data from the survey are available on CD-ROM. This paper briefly describes the data set and how it may be accessed.     

Matching Methods for Selection of Participants for Follow-Up

This work examines ways to make the best use of limited resources when selecting individuals to follow up in a longitudinal study estimating causal effects. In the setting under consideration, covariate information is available for all individuals but outcomes have not yet been collected and may be expensive to gather, and thus only a subset of the comparison participants are followed. Expressions in Rubin and Thomas (1996) Rubin, D. B. and Thomas, N. 1996. Matching using estimated propensity scores, relating theory to practice.. Biometrics, 52: 249–264. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar] show the benefits that can be obtained, in terms of reduced bias and variance of the estimated treatment effect, of selecting comparison individuals well matched to those in the treated group compared with a random sample of comparison individuals. We primarily consider nonexperimental settings but also consider implications for randomized trials. The methods are illustrated using data from the Johns Hopkins University Baltimore Prevention Program, which included data collection from age 6 to young adulthood of participants in an evaluation of 2 early elementary-school-based universal prevention programs.     

A Clinical Intervention in Chronic Pain and Insomnia with a Combined Model of Treatment: A Test of Concept

Co-occurring chronic pain and insomnia are common in a clinical setting. Cognitive–behavioral theoretical (CBT) frameworks exist for both conditions independently. The purpose of this study was to address the problem of co-occurring chronic pain and insomnia with an integrated CBT model based on empirical support. One-hundred eleven individuals (age range 21–65 years) meeting the general criteria for chronic pain and insomnia were included in this study. Participants completed a demographic form, the Dysfunctional Beliefs and Attitudes about Sleep—16-item version, Insomnia Severity Index, Sleep Hygiene Index, Sleep Associated Monitoring Index, Pain Catastrophizing Scale, Pain Disability Questionnaire, Modified Somatic Perceptions Questionnaire, Hospital Anxiety and Depression Scale, and Multidimensional Scale of Perceived Social Support. Significant positive bivariate relationships were observed for pain catastrophizing (PC) and dysfunctional beliefs and attitudes about sleep (DBAS), as well as somatic awareness and sleep-associated monitoring. Two backward stepwise regression models were utilized to determine a model for predicting insomnia severity and pain disability respectively using a combination of sleep and pain-associated measures. Insomnia severity was predicted by DBAS, PC, and somatic awareness. Pain disability was predicted by PC, DBAS, depression, and social support. Maladaptive thought patterns related to pain and insomnia and associated features appear to have a synergistic effect on both insomnia severity and pain disability and support a combined cognitive–behavioral model.