It is assumed in the study of parent-child attachment: M. Mikulincer and P. R. Shaver, “The Attachment Behavioral System in Adulthood: Activation, Psychodynamics, and Interpersonal Processes,” in
The Woody Allen hypothesis has deep roots in Judeo-Christian thought about original sin and the fall from grace: One of the best books I’ve read on happiness is historian Darrin McMahin’s broad survey of how the concept and practice of happiness have changed over 2,500 years of Western culture. McMahin,
This is a standard evolutionary principle: R. J. Andrew, “The Origin and Evolution of the Calls and Facial Expressions of the Primates,”
downplay any sudden abundance in resources through modesty and generosity: Christopher Boehm,
LAUGHTER
Jared Diamond argues: Jared Diamond,
It is a point that evolutionists Matthew Gervais and David Sloan Wilson: Gervais and Wilson, “The Evolution and Functions of Laughter: A Synthetic Approach,”
What separates mammals from reptiles are the raw materials of laughter: MacLean was one of the first to make this point in explaining how mammals’ brains differ from those of reptiles. Paul D. MacLean,
Yet the laughter of chimps and apes is more tightly linked to inhalation and exhalation patterns: Robert Provine has written a wonderful book on laughter. Provine,
Boyle’s descriptions: T. C. Boyle,
Estimates indicate that: Provine,
Laughter is contagious: Robert Provine, “Contagious Laughter: Laughter Is a Sufficient Stimulus for Laughs and Smiles,”
laughter is intertwined with our breathing: Provine was the first to make this point, in
Measures include speech rate, pitch, loudness: Klaus Scherer is to the voice in emotion what Ekman is to the face. He was the first to chart systematically how the different emotions will be expressed in difficult acoustic qualities like pitch, amplitude, and variation. K. R. Scherer, “Vocal Affect Expression: A Review and a Model for Future Research,”
Bachorowski was the first to put laughs through this complex form of acoustic analysis: Jo-Anne Bachorowski has done for the laugh what Ekman did for the smile—provide an objective, anatomically based rationale for explaining some of the varieties of the laugh. Bachorowski and M. J. Owren, “Not All Laughs Are Alike: Voiced by Not Voiced Laughter Readily Elicits Positive Affect,”
In his remarkable meditation on laughter: Milan Kundera,
The laughs of friends, as opposed to those of strangers: Smoski and Bachorowski, “Antiphonal Laughter between Friends and Strangers,”
Here a remarkable discovery: Bachorowski, Smoski, and Owren, “The Acoustic Features of Human Laughter,”
laughter preceded language in human evolution: For analyses of the evolution of laughter, see Provine,
Recent neuroscientific data on laughter: B. Wild, F. A. Rodden, W. Grodd, and W. Ruch, “Neural Correlates of Laughter and Humor,”
tension and ambiguity: for an excellent treatment of humor and laughter, see Michael L. Apte,
Provine turned his astute ear to the laughter that occurs in the real world: Robert Provine, “Laughter Punctuates Speech: Linguistic, Social, and Gender Contexts of Laughter,”