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Series in Affective Science

What the Face Reveals: Basic and Applied Studies of Spontaneous Expression Using the Facial Action Coding System (FACS)

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Facial expressions convey a vast amount of information, but only recently have investigators begun to explore the precise details of what expressions are telling us about internal states, social behavior, and psychopathology. The Facial Action Coding System (FACS), which is a tool for
comprehensively measuring facial expressions, plays a central role in this rapidly growing and exciting field.
This volume represents the state of the art in research on facial expressions. Drawing from psychology, medicine, and psychiatry, the chapters address such key issues as the dynamic and morphological differences between voluntary and involuntary expressions; the relationship between what people
show on their faces and what they say they feel; and whether it is possible to use facial behavior to distinguish among different psychiatric populations. The volume includes groundbreaking work on how the face reveals emotions, deception, psychopathology, and aspects of physical health. An
essential reference for anyone pursuing research in facial expressions, this work combines classic papers with up-to-date commentary by the authors.

Paperback

First published February 12, 1998

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About the author

Paul Ekman

57 books880 followers
American psychologist that pioneered the study of emotions' relationship to facial expressions.

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5 stars
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3 stars
34 (14%)
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3 (1%)
Displaying 1 - 8 of 8 reviews
Profile Image for Andreas Michaelides.
Author 87 books23 followers
June 30, 2015
If you want to know if someone is lying to you or deceiving you then this is the book for you, it covers the whole science behind the methodology by a man that spend a big portion of his life becoming a human lie detector.
It’s an amazing book, one I constantly consult frequently and I am sure I will never stop getting info out of it.
A must read book for anyone interested in learning how facial expressions work and not only that.
This book is a complete scientific based proven research that will expand your brain.
Profile Image for Marisa Bennett.
111 reviews32 followers
Currently Reading
March 6, 2011
I am not sure about this book yet. I got it because I am very good at discerning affect, and work with a lot of children, and traumatized adults. This is definitely a research textbook, and a little different than I expected. I have not gotten very far in it yet, but will definitely finish it. Then I will rate it.
Profile Image for Gold Dust.
325 reviews
February 17, 2026
Didn’t get to finish the book. Left off on p. 178.

Chapters of interest: 5, 7, 9, 11, 13, 14, 19, 22. I finished 5, 7

Notes:

“Voluntary smiles are more frequently unilateral (present in one half of the face only) or asymmetrical (stronger in one half of the face); their onset is abrupt or otherwise irregular but not smooth; they are more frequently too short (less than half of a second) or too long (more than 4 sec); and they are more frequently asynchronous (i.e., the zygomatic major and obicularis oculi muscles do not reach their apex at the same time)” (113).

“Laughter displayed in response to humor has been shown to be exclusively symmetrical (Ruch, 1990)” (114).



“Extraverts will show enjoyment displays (smiles and laughter) more often than introverts” (114).

“High doses of alcohol seem to facilitate negative affect while the effects of intoxication with low and medium doses includes elevation of positive affect; typically an increase in scales measuring positive mood states (e.g., elation) is reported” (114).

“Based on the inhibition theory of extraversion it is assumed that ‘depressant drugs increase cortical inhibition, decrease cortical excitation and thereby produce extraverted behavior patterns. Stimulant drugs decrease cortical inhibition, increase cortical excitation and thereby produce introverted behavior patterns’” (115).

“Extraverts reach the so-called sedation threshold sooner than introverts” (115).

“The average and the maximal intensity of the enjoyment display increased with increasing degrees of extraversion” (126).

“For non-intoxicated Ss (i.e., in the control group) the correlation between extraversion and laughter was the highest obtained for all individual behavioral indicators of positive affect” (126).

“Among those who appreciate the humor the extraverts will show enjoyment displays more frequently than introverts” (127).

“A low dose of alcohol seems to create a transition state which is characterized by the facilitation of emotionality in the range of negative to mildly positive affect” (127).

“The introvert is much more resistant to alcohol than the extravert” (128).

“Positive affectivity is more strongly prevalent among extraverts than among introverts” (128).

5-39% of subjects show no facial response to humor, tickling, or laughing gas. “Introverts formed the majority of the nonresponders” (131). Women were more expressive to pain than men (170).

“Embarrassment is marked by gaze aversion, shifty eyes, speech disturbances, face touches, and a nervous, silly smile that reaches its apex following gaze aversion” (134).

From p. 168-170:
Genuine pain: lowered eyebrows, raised cheeks, tight lids, raised upper lip, parted lips, eyes closed

Masked pain: compared to baseline, tight lids/narrowed eyes, less blinking. Compared to genuine pain, less outer brow raising, cheek raising, parting lips, closed eyes, blinking.

Faked pain: compared to baseline, less blinking; more of all of the following: lowered eyebrows, raised cheeks, tight lids, raised upper lip, lip corners pulled back and up, parted lips, eyes closed. Compared to genuine pain, less blinking; more brow lowering, cheek raising, lip corners pulled back and up.

People faking their pain display more vivid/intense responses than when in genuine pain, and people masking their pain made it hard to tell they were in pain at all (172).

Because people are able to stop their facial expressions of pain if they try, it’s evidence that it’s under their control (173).

“People blink less frequently when vigorously pursuing cognitive activities” (173).
24 reviews
May 19, 2025
This book cannot be read alone. To fully understand the meaning and recognize which muscle does what, you need to take the microexpression training from Paul Ekman. This book is the manual used for the training. It's hard to read, but contains so much information that can save yourself from complex situations, life or death situations, etc.
Profile Image for Kimberly.
81 reviews
January 14, 2011
This book is a collection of research articles based on, well, what the face reveals. I have not been interested in reading about their experiments, though they seem as well done as these kind of experiments can be (hard to control for everything, some speculation and conjecture). I'm enjoying the discussion sections at the end of the chapters. They are well thought-out and professionally written.
Profile Image for Deb .
28 reviews3 followers
March 25, 2010
Very technical reading but brilliant work by Ekman!
Profile Image for djreggiereg Mas Reg.
21 reviews4 followers
July 10, 2013
I would've never known about Paul Ekman if it wasn't for reading books on Darwin. This book will take me on a great path. Thanks.
Displaying 1 - 8 of 8 reviews