I am violent because I don't feel sexy: Violent individuals of both sexes are the ones that report significantly lower levels of mate value, and other undesirable traits

Poster 49. I am violent because I don't feel sexy .Ana Maria Fernandez, Jose Muñoz-Reyes, Oriana Figueroa, Paula Pavez, Maryanne Fisher. Human Behavior and Evolution Society, 30th Annual Meeting, July 2018. http://www.hbes.com/conference/hbes2018/

Abstract: According to the mating literature, people who are attractive enjoy high status among their peers, and are often selected and pursued by the opposite sex as romantic partners. High mate value is characterized by increased delivery of benefits, in comparison to low mate value. The struggle of unattractive individuals is different, and it has been documented that low mate value tends to underlie the delivery of costs and more conflict within reproductive relationships. We evaluated the mate value of 132 heterosexual couples, and compared the sample according to a clinical as well as a paper and pencil assessment of partner violence. The results are consistent with the literature, showing that violent individuals of both sexes are the ones that report significantly lower levels of mate value, and other undesirable traits. We discuss that high mate value brings about more benefit delivery than relationship costs, while the reverse is true of low mate value.

Alcohol, Generosity and Empathy: There was a negative association between generosity & reported alcohol consumption, & no significant association between empathy & alcohol consumption

Alcohol, Generosity and Empathy. David Fielding, Stephen Knowles, Kirsten Robertson. Journal of Behavioral and Experimental Economics, https://doi.org/10.1016/j.socec.2018.07.005

Highlights
•    A Dictator Game experiment was conducted to measure subjects‟ level of generosity.
•    Subject empathy was measured using the Empathy Quotient Scale.
•    There was a negative association between generosity and reported alcohol consumption.
•    There was no significant association between empathy and reported alcohol consumption.

ABSTRACT: Existing studies suggest that chronic alcohol dependency (or recovery from alcohol dependency) is associated with lower levels of empathy and generosity. We present results from a charitable donation experiment that was designed to test for associations with moderate variation in the level of alcohol consumption rather than with the incidence of chronic dependency. We find that higher levels of alcohol consumption (and also higher levels of alcohol expenditure) are associated with significantly less generosity. However, there is no significant association between alcohol consumption / expenditure and empathy (as measured by the Interpersonal Reactivity Index) or between alcohol consumption / expenditure and materialism (as measured by the Material Values Scale). This suggests that the relationship between alcohol expenditure and generosity may be mediated through some other channel.

Rolf Degen summarizing: For singles, the ideal partner should combine the right mix of similarity and superiority in personality, but when push comes to shove, they settle for less

Similar to and/or Better than Oneself? Singles' Ideal Partner Personality Descriptions. Jie Liu et al. European Journal of Personality, https://doi.org/10.1002/per.2159

Abstract: Using the HEXACO Model of Personality, we explored two kinds of ideal partner preferences regarding personality traits, namely, to what extent people prefer partners similar to themselves (similarity preference) and to what extent people prefer partners with more desirable trait levels than themselves (aspirational assortative preference). We conducted five studies (overall N > 900) across four countries (China, Denmark, Germany, and the USA), looking at both HEXACO factors and facets, using both self‐report questionnaires and real‐life data (personal profiles from a dating website), and comprising both student and more heterogeneous samples. The results provided support for both kinds of ideal partner preferences, with important differences across traits. Specifically, similarity preference was supported by all studies concerning all HEXACO traits, and aspirational assortative preference was supported by all four self‐report studies (though not the dating website study) concerning all HEXACO traits except for Openness to Experience. Concerning differences in preferences among the HEXACO traits, similarity preference was particularly pronounced for Honesty–Humility and Openness to Experience, moderate for Agreeableness and Conscientiousness, and less pronounced for Emotionality and Extraversion. Aspirational assortative preference, by contrast, was particularly pronounced for Emotionality, Extraversion, and Agreeableness, moderate for Honesty–Humility, and inconsistent for Conscientiousness.

Awe has traditionally been considered a religious or spiritual emotion; but the disposition to experience awe predicts a more accurate understanding of how science works, rejection of creationism, & rejection of unwarranted teleological explanations more broadly

Awe as a Scientific Emotion. Sara Gottlieb, Dacher Keltner, Tania Lombrozo. Cognitive Science, https://doi.org/10.1111/cogs.12648

Abstract: Awe has traditionally been considered a religious or spiritual emotion, yet scientists often report that awe motivates them to answer questions about the natural world, and to do so in naturalistic terms. Indeed, awe may be closely related to scientific discovery and theoretical advance. Awe is typically triggered by something vast (either literally or metaphorically) and initiates processes of accommodation, in which existing mental schemas are revised to make sense of the awe‐inspiring stimuli. This process of accommodation is essential for the kind of belief revision that characterizes scientific reasoning and theory change. Across six studies, we find that the tendency to experience awe is positively associated with scientific thinking, and that this association is not shared by other positive emotions. Specifically, we show that the disposition to experience awe predicts a more accurate understanding of how science works, rejection of creationism, and rejection of unwarranted teleological explanations more broadly.

We study gender differences in altruistic behaviour and in expected altruism; women are significantly more altruistic than men; & both women and men expect women to be more altruistic than men

Gender differences in altruism on Mechanical Turk: Expectations and actual behaviour. Pablo Brañas-Garza, Valerio Capraro, Ericka Rascón-Ramírez. Economics Letters, Volume 170, September 2018, Pages 19-23. https://doi.org/10.1016/j.econlet.2018.05.022

Highlights
•    We study gender differences in altruistic behaviour. We also study gender differences in expected altruism.
•    We use a sample of Amazon Mechanical Turk crowdworkers living in the US (simple ¿ 4,000 workers).
•    We show that women are significantly more altruistic than men. We also show that both women and men expect women to be more altruistic than men.

Abstract: Whether or not there are gender differences in altruistic behaviour in Dictator Game experiments has attracted considerable attention in recent years. Earlier studies found women to be more altruistic than men. However, this conclusion has been challenged by more recent accounts, which have argued that gender differences in altruistic behaviour may be a peculiarity of student samples and may not extend to other groups. Here we study gender differences in altruisticbehaviour and, additionally, in expectations of altruistic behaviour, in a sample of Amazon Mechanical Turk crowdworkers living in the US. In Study 1, we report a mega-analysis of more than 3, 500 observations and we show that women are significantly more altruistic than men. In Study 2, we show that both women and men expect women to be more altruistic than men.

Check also Morality Is for Choosing Sides. Peter DeScioli, Robert Kurzban. https://www.bipartisanalliance.com/2018/07/morality-is-for-choosing-sides-not-for.html

And Theories of human altruism: a systematic review. Svetlana Feigin, Glynn Owens and Felicity Goodyear-Smith. Annals of Neuroscience and Psychology, 2014. https://www.bipartisanalliance.com/2018/04/theories-of-human-altruism-future.html

NYT Very Surprised That "A Fear of Lawsuits Really Does Seem to Result in Extra Medical Tests"

Defensive Medicine: Evidence from Military Immunity. Michael D. Frakes, Jonathan Gruber. NBER Working Paper No. 24846, July 2018. http://www.nber.org/papers/w24846

Abstract: We estimate the extent of defensive medicine by physicians, embracing the no-liability counterfactual made possible by the structure of liability rules in the Military Heath System. Active-duty patients seeking treatment from military facilities cannot sue for harms resulting from negligent care, while protections are provided to dependents treated at military facilities and to all patients—active-duty or not—that receive care from civilian facilities. Drawing on this variation and exploiting exogenous shocks to care location choices stemming from base-hospital closures, we find suggestive evidence that liability immunity reduces inpatient spending by 5% with no measurable negative effect on patient outcomes.

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A Fear of Lawsuits Really Does Seem to Result in Extra Medical Tests. By Margot Sanger-Katz
https://www.nytimes.com/2018/07/23/upshot/malpractice-lawsuits-medical-costs.html
Doctors are known for complaining about how the malpractice system adds costs. But it has been hard to prove, until now.
The New York Times, July 23, 2018

Back in 2010, Tom Price, then a congressman, said he knew the chief reason health care cost so much: “Defensive medicine” was costing the United States $650 billion per year — about 26 percent of every dollar spent.

The widely dismissed estimate from Dr. Price, an orthopedic surgeon who went on to become President Trump’s health and human services secretary before resigning last fall, was memorable for its magnitude.

But American doctors often rail against the country’s medical malpractice system, which they say forces them to order unnecessary tests and procedures to protect themselves if a patient sues them. Some prominent health economists, including those at the Congressional Budget Office, have tended to play down such costs, arguing that medical practice is not too warped by fear of lawsuits. But the question has proved difficult to study, since patients nearly everywhere can sue. Without a control group, it’s hard to know how differently doctors might act if they were less worried about liability.

Researchers from Duke and M.I.T. have found a pocket of America that is different, and they now offer what is perhaps the most precise estimate of how much defensive medicine matters, at least for care in the hospital. They found that the possibility of a lawsuit increased the intensity of health care that patients received in the hospital by about 5 percent — and that those patients who got the extra care were no better off.

“There is defensive medicine,” said Jonathan Gruber, a health economist at M.I.T. and an author of the paper, which was published in draft form Monday by the National Bureau of Economic Research.  “But that defensive medicine is not explaining a large share of what’s driving U.S. health care costs.”

Mr. Gruber and Michael D. Frakes, a Duke economist and lawyer, looked at the health care system for active-duty members of the military. Under longstanding law, such patients get access to a government health care system but are barred from suing government doctors and hospitals for malpractice. Their family members can also use the military hospitals, but they can sue for malpractice if they wish.

Their study looked at what happened to the hospital care that military members received when a base closing forced them to use their benefits in civilian hospitals, where it was possible to sue. Spending on their health care increased, particularly on extra diagnostic tests.

They also found that, even within the military hospitals, family members who could sue tended to get more tests than those who could not.

Previous research has primarily looked at the effects of smaller legal reforms, like state caps on the awards that malpractice victims can collect in court. Those studies showed some declines in medical spending related to the policies. But they tended to be small, and yearly variation in medical spending made it difficult to be sure how much of the difference was  because of the legal change.

“They did a nice job of finding a population of patients who are being treated by doctors who didn’t have any liability,” said Mark McClellan, the director of the Duke-Margolis Center for Health Policy. Dr. McClellan was a top health official in the George W. Bush administration, which pushed for national liability caps.

The paper’s focus on the hospital allowed the researchers to have a lot of precision in their measurements. But it means they didn’t capture all the places where defensive medicine might occur. It’s possible, for example, that liability concerns cause treatment to rise by more than 5 percent for emergency room patients who go home the same day — or not at all in a typical office visit.

Mr. Frakes and Mr. Gruber examined a large number of quality indicators to determine whether the doctors who practiced less intense medicine on their military patients were somehow cutting corners.  Each measure differed, and there were some places where harm couldn’t be ruled out, but they found no place where the quality of care in the military hospital appeared to clearly be worse.  That finding suggests that, when doctors do extra treatment or testing to avoid liability, they are not necessarily taking extra steps that make their patients any healthier.

“It suggests that physicians change their behavior in response to liability considerations, but they don’t do it in a very calibrated way,” said Michelle Mello, a professor of law and health policy at Stanford, who has studied medical malpractice. “They tend to make a lot of changes that don’t result in better patient care.”

In the federal government and in states, there are frequent proposals to limit medical liability, but there have been no serious efforts to eliminate medical malpractice rights altogether. Mr. Gruber said the paper’s estimates were best viewed as a kind of ceiling for the effects of more realistic reforms.

Any law that limits the cases where patients can sue, or the amount of money they can collect, is likely to lower medical use  in the hospital by less than the 5 percent they measured in their study.

Amitabh Chandra, a health economist at Harvard, said the best policies needed to lower the burden on physicians while still generating “social value.” He said that continued research on the relationship between malpractice pressure and health care quality was important as different approaches were tested.

The most popular state action has been to impose caps on monetary damages. In the paper, the authors suggest different types of changes to malpractice policy, including one in which doctors would be shielded from liability if they adhered to common standards of care. Ms. Mello suggested studying a system in which administrative courts, instead of juries, determined liability and damages.

Other possible approaches haven’t been tried, like a system used for childhood vaccines, in which patients are paid if they are harmed by medical care, regardless of fault.

“Policymakers have only experimented with a limited set of types of reforms to date,” Mr. Frakes said. “We haven’t experimented a lot with more structural reforms to the system.”

Margot Sanger-Katz is a domestic correspondent and writes about health care for The Upshot. She was previously a reporter at National Journal and The Concord Monitor and an editor at Legal Affairs and the Yale Alumni Magazine. @sangerkatz • Facebook

A version of this article appears in print on July 24, 2018, on Page B4 of the New York edition with the headline: Doctors’ Fear of Lawsuits May Hit Patients in the Wallet, Study Hints

Cognitive neuroscience of person identification: Comparing the processes by which people are identified through face & voice, find that face recognition accuracy suffers little or no cost with increases in set size; voice recognition accuracy declines markedly beyond a handful of possibilities

The cognitive neuroscience of person identification. Irving Biederman et al. Neuropsychologia, Volume 116, Part B, 31 July 2018, Pages 205-214. https://doi.org/10.1016/j.neuropsychologia.2018.01.036

Highlights
•    The processes by which people are identified through face and voice are compared.
•    Face recognition accuracy suffers little or no cost with increases in set size.
•    Voice recognition accuracy declines markedly beyond a handful of possibilities.
•    The deficit in congenital phonagnosia need not be perceptual.
•    Face and voice recognition abilities are uncorrelated.

Abstract: We compare and contrast five differences between person identification by voice and face. 1. There is little or no cost when a familiar face is to be recognized from an unrestricted set of possible faces, even at Rapid Serial Visual Presentation (RSVP) rates, but the accuracy of familiar voice recognition declines precipitously when the set of possible speakers is increased from one to a mere handful. 2. Whereas deficits in face recognition are typically perceptual in origin, those with normal perception of voices can manifest severe deficits in their identification. 3. Congenital prosopagnosics (CPros) and congenital phonagnosics (CPhon) are generally unable to imagine familiar faces and voices, respectively. Only in CPros, however, is this deficit a manifestation of a general inability to form visual images of any kind. CPhons report no deficit in imaging non-voice sounds. 4. The prevalence of CPhons of 3.2% is somewhat higher than the reported prevalence of approximately 2.0% for CPros in the population. There is evidence that CPhon represents a distinct condition statistically and not just normal variation. 5. Face and voice recognition proficiency are uncorrelated rather than reflecting limitations of a general capacity for person individuation.

Keywords: Voice recognition, Phonagnosia, Face recognition, Prosopagnosia, Face imagination, Voice imagination

Trigger warnings may inadvertently undermine some aspects of emotional resilience: They increase peoples' perceived emotional vulnerability to trauma, the belief that trauma survivors are vulnerable, & increase anxiety to written material perceived as harmful

Trigger warning: Empirical evidence ahead. Benjamin W.Bellet, Payton J.Jones, Richard J. McNally. Journal of Behavior Therapy and Experimental Psychiatry, https://doi.org/10.1016/j.jbtep.2018.07.002

Highlights
•    Trigger warnings increase peoples' perceived emotional vulnerability to trauma.
•    Trigger warnings increase peoples' belief that trauma survivors are vulnerable.
•    Trigger warnings increase anxiety to written material perceived as harmful.

Abstract

Background and objectives: Trigger warnings notify people of the distress that written, audiovisual, or other material may evoke, and were initially used to provide for the needs of those with posttraumatic stress disorder (PTSD). Since their inception, trigger warnings have become more widely applied throughout contemporary culture, sparking intense controversy in academia and beyond. Some argue that they empower vulnerable individuals by allowing them to psychologically prepare for or avoid disturbing content, whereas others argue that such warnings undermine resilience to stress and increase vulnerability to psychopathology while constraining academic freedom. The objective of our experiment was to investigate the psychological effects of issuing trigger warnings.

Methods: We randomly assigned online participants to receive (n = 133) or not receive (n = 137) trigger warnings prior to reading literary passages that varied in potentially disturbing content.

Results: Participants in the trigger warning group believed themselves and people in general to be more emotionally vulnerable if they were to experience trauma. Participants receiving warnings reported greater anxiety in response to reading potentially distressing passages, but only if they believed that words can cause harm. Warnings did not affect participants' implicit self-identification as vulnerable, or subsequent anxiety response to less distressing content.

Limitations: The sample included only non-traumatized participants; the observed effects may differ for a traumatized population.

Conclusions: Trigger warnings may inadvertently undermine some aspects of emotional resilience. Further research is needed on the generalizability of our findings, especially to collegiate populations and to those with trauma histories.

When comparing ideal partner preferences, continually-coupled individuals rated Warmth/Trustworthiness and Vitality lower than newly-coupled individuals: Coupled individuals adjust their ideal mate preferences according to their actual partner

Coupled individuals adjust their ideal mate preferences according to their actual partner. Radka Kučerová, Zsófia Csajbók, Jan Havlíček. Personality and Individual Differences, Volume 135, 1 December 2018, Pages 248-257. https://doi.org/10.1016/j.paid.2018.07.019

Abstract: It has been suggested that coupled individuals tend to adjust their ideal partner preferences according to their actual partner. In Study 1, we developed a mate preference trait-list and found a four-factor structure (Physical attractiveness, Status/Resources, Vitality, and Warmth/Trustworthiness), which we confirmed in Study 2. In Study 3, we compared ideal and actual partner preferences in continually-coupled and newly-coupled individuals. Ideal partner preferences were recorded in continually-coupled participants while in the relationship and in single participants before they established a relationship. Results showed that discrepancy between ideal and actual partner evaluations was lower in continually-coupled than in newly-coupled individuals when computing Manhattan distance between them. When comparing ideal partner preferences, continually-coupled individuals rated Warmth/Trustworthiness and Vitality lower than newly-coupled individuals. No difference between continually-coupled and newly-coupled individuals was found in their actual partner evaluations. Our results indicate that relationship status significantly affects ideal partner preferences.

Against the widespread belief that modern-day loneliness is inevitable, negative, and universal, loneliness is relatively recent invention, dating from around 1800 that needs to be understood firstly as an “emotion cluster” composed of a variety of affective states

This “Modern Epidemic”: Loneliness as an Emotion Cluster and a Neglected Subject in the History of Emotions. Fay Bound Alberti. Emotion Review, https://doi.org/10.1177/1754073918768876

Abstract: Loneliness is one of the most neglected aspects of emotion history, despite claims that the 21st century is the loneliest ever. This article argues against the widespread belief that modern-day loneliness is inevitable, negative, and universal. Looking at its language and etymology, it suggests that loneliness needs to be understood firstly as an “emotion cluster” composed of a variety of affective states, and secondly as a relatively recent invention, dating from around 1800. Loneliness can be positive, and as much a part of the body as the mind. Using a longue durée approach, I argue that we cannot understand loneliness as a “modern epidemic” without considering its history, its meanings, its practice, and its links with the body.

Keywords: emotion, history, loneliness, longue durée

Malicious poisonings: Agent choice was found to differ between experts & non-experts (depending on whether the event was a threat or a genuine contamination incident); attacks by poison experts were found to be no more deadly than attacks perpetrated by non-experts

Poisoning expertise and outcomes in malicious contamination incidents. Sarah Kilbane. Journal of Criminal Psychology, https://www.emeraldinsight.com/doi/abs/10.1108/JCP-02-2018-0008?journalCode=jcp

Abstract:

Purpose: It is often assumed that poisoners and product tamperers are likely to share an interest in or knowledge of poisonous substances. The purpose of this paper is to determine whether perpetrators with existing poison knowledge will choose different contaminating agents than non-experts, as well as whether there is a link between poison expertise and outcomes in malicious contamination cases. Based on their expertise, it is expected that those perpetrators with some form of existing poison knowledge would select more concerning and difficult to obtain agents, and that attacks committed by experts would result in more harm than attacks by non-experts.

Design/methodology/approach: A content analysis was conducted on qualitative descriptions of malicious contamination events, with relevant behavioural variables identified as being present or absent for each individual case. Differences between experts and non-experts in agent choice and incident outcome were then explored using descriptive statistics, contingency tables and Mann-Whitney U tests.

Findings: Agent choice was found to differ between experts and non-experts, with different agents chosen depending on whether the event was a threat or a genuine contamination incident. However, attacks by poison experts were found to be no more deadly than attacks perpetrated by non-experts.

Originality/value: This research provides the first known analysis comparing agent choice and outcomes in malicious contamination incidents as a factor of perpetrator knowledge. Investigative applications are discussed.

Keywords: Expertise, CBRN, Threat, Malicious contamination, Poisoning, Product tampering

Rolf Degen summarizing: Neuroscientists failed to pinpoint the brain correlate of boredom, arguably because many people find their own thoughts so entertaining that they are not easily bored

Finding Consistency in Boredom by Appreciating its Instability. Caitlin Mills, Kalina Christoff. Trends in Cognitive Sciences, https://doi.org/10.1016/j.tics.2018.07.001

Abstract: Boredom has recently piqued cognitive neuroscientific interest, but remains a challenge to scientific investigation in this field. We propose that to advance this research, we should (i) seek greater consistency of operationalization and measurement across studies and participants; and (ii) appreciate the temporal instability of boredom and its ensuing dynamics.


Abstract: Boredom has recently piqued cognitive neuroscientific interest, but remains a challenge to scientific investigation in this field. We propose that to advance this research, we should (i) seek greater consistency of operationalization and measurement across studies and participants; and (ii) appreciate the temporal instability of boredom and its ensuing dynamics.

1932: The electoral sway of the Depression was quite limited, the government was not seen by most voters (including FDR ones) as the major culprit or as having been ineffective in alleviating it; moreover, there was no widespread “doom and gloom” about the future

The American Voter in 1932: Evidence from a Confidential Survey. Helmut Norpoth. PS: Political Science & Politics, https://doi.org/10.1017/S1049096518001014

Abstract: In 1932, the American electorate was surveyed in a poll that has languished in the archives. The survey was conducted by Houser Associates, a pioneer in market research. It interviewed face-to-face a representative cross section about voter choices and issue attitudes. Although conducted on behalf of the Hoover campaign, the poll was not biased in his favor. The most striking revelation is that the electoral sway of the Depression was quite limited. The government was not seen by most voters as the major culprit or as having been ineffective in alleviating it. Even many FDR voters agreed. Moreover, there was no widespread “doom and gloom” about the future. What loomed larger in 1932 was the issue of Prohibition. The American people overwhelmingly favored repeal. The Democratic stand on it—that is, outright repeal—was a sure electoral winner, given Hoover’s staunch defense of Prohibition.

After deciding among moral (but not nonmoral) options, people (in Western cultures) tend to choose more variety in an unrelated task, likely because choosing more variety helps them reassert their sense of choice

Kouchaki, M., Smith, I. H., & Savani, K. (2018). Does deciding among morally relevant options feel like making a choice? How morality constrains people’s sense of choice. Journal of Personality and Social Psychology. http://dx.doi.org/10.1037/pspa0000128

Abstract: We demonstrate that a difference exists between objectively having and psychologically perceiving multiple-choice options of a given decision, showing that morality serves as a constraint on people’s perceptions of choice. Across 8 studies (N = 2,217), using both experimental and correlational methods, we find that people deciding among options they view as moral in nature experience a lower sense of choice than people deciding among the same options but who do not view them as morally relevant. Moreover, this lower sense of choice is evident in people’s attentional patterns. When deciding among morally relevant options displayed on a computer screen, people devote less visual attention to the option that they ultimately reject, suggesting that when they perceive that there is a morally correct option, they are less likely to even consider immoral options as viable alternatives in their decision-making process. Furthermore, we find that experiencing a lower sense of choice because of moral considerations can have downstream behavioral consequences: after deciding among moral (but not nonmoral) options, people (in Western cultures) tend to choose more variety in an unrelated task, likely because choosing more variety helps them reassert their sense of choice. Taken together, our findings suggest that morality is an important factor that constrains people’s perceptions of choice, creating a disjunction between objectively having a choice and subjectively perceiving that one has a choice.

Musical activity during waking seems related to a higher amount of music dreams: About 6% of all remembered dreams contained music, & frequency was significantly higher when the participants spent time with music activities in waking (singing, playing an instrument)

König, N., Fischer, N., Friedemann, M., Pfeiffer, T., Göritz, A. S., & Schredl, M. (2018). Music in dreams and music in waking: An online study. Psychomusicology: Music, Mind, and Brain, 28(2), 65-70. http://dx.doi.org/10.1037/pmu0000208

Abstract: A connection between music and dreams has been reported in many cultures. Although inspirations by dreams were reported for famous musicians, there are few studies investigating the occurrence of music dreams in the general population. In the present online study, 1,966 participants filled out an online questionnaire concerning their involvement in music in waking and the occurrence of music in dreams. The basic framework for the study was the continuity hypothesis of dreaming; that is, more musical activity during waking should be related to a higher amount of music dreams. About 6% of all remembered dreams contained music, and the frequency was significantly higher when the participants spent time with music activities in waking like singing, playing an instrument, or listening actively to music—supporting the continuity hypothesis. In addition, music dreams were associated with more positive emotions. Future research should study the effects of music in waking on music in dreams over a longer period of time (dream diaries), as well as the dreams of professional musicians.