Speakers´ expressions before and in a public presentation. Pleasantness, emotional valence, credibility, and comprehension effects




Palabras clave:

Expressions, Pleasantness, Credibility, Emotional valence, Comprehension, Appearance, Gender, Oral presentations, Speakers, Discourses


When a speaker engages in public speaking, the expression shown while delivering the speech determines the effectiveness of the communication and can be very influential in organizational settings. However, in public speaking, the audience can often see the speaker before the presentation begins. Therefore, the public could hypothetically gain an impression on the basis of the speakers´ expressions even before performing the presentation. With this idea in mind, the goal of this research is to analyze the influence of speakers´ expressions before delivering a speech and during the presentation. The study included two brown-haired/dark-eyed male and female and two blonde-haired/blue-eyed male and female presenters to investigate the effect of appearance and gender. A total of 200 participants looked at the speakers´ pictures with five different expressions before delivering the speech. They then watched videos with the same speakers and similar expressions while delivering the speech. The results showed that happiness was the most pleasant and positive expression, followed by confidence, indifference, shyness, and anger, when the participants watched the speakers before the presentation. However, confidence was considered the most pleasant, credible, and comprehensible expression, followed by happiness, anger, shyness, and indifference, while giving the speech. In both cases, female presenters were perceived as the most pleasant, and brown-haired/dark-eyed speakers were considered the most pleasant, credible, and comprehensible. The speakers´ expressions were perceived as more intense before the speech than during the discourse. This line of research helps understand the influence of these two crucial moments in presentations, and the results may be transferred into practice for public speaking training.


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Abele, Andrea E.; Wojciszke, Bogdan (2014). "Communal and agentic content in social cognition: a dual perspective model". In: Gawronski, Bertram (ed.). Advances in experimental social psychology, v. 50, pp. 195-255. Academic Press. ISBN: 978 0 128245781

Ambadar, Zara; Schooler, Jonathan W.; Cohn, Jeffrey F. (2005). "Deciphering the enigmatic face: the importance of facial dynamics in interpreting subtle facial expressions". Psychological science, v. 16, n. 5, pp. 403-410. https://doi.org/10.1111/j.0956-7976.2005.01548.x

Antonakis, John; Eubanks, Dawn L. (2017). "Looking leadership in the face". Current directions in psychological science, v. 26, n. 3, pp. 270-275. https://doi.org/10.1177/0963721417705888

Bailey, April H.; Lambert, Robert; LaFrance, Marianne (2020). "Implicit reactions to women in high power body postures: Less wonderful but still weaker". Journal of nonverbal behavior, v. 44, pp. 329-350. https://doi.org/10.1007/s10919-019-00327-w

Bailey, Erika (2019). "A historical view of the pedagogy of public speaking". Voice and speech review, v. 13, n. 1, pp. 31-42. https://doi.org/10.1080/23268263.2018.1537218

Bakker-Pieper, Angelique; De-Vries, Reinout E. (2013). "The incremental validity of communication styles over personality traits for leader outcomes". Human performance, v. 26, n. 1, pp. 1-19. https://doi.org/10.1080/08959285.2012.736900

Barrett, Lisa-Feldman; Adolphs, Ralph; Marsella, Stacy; Martinez, Alex M.; Pollak, Seth D. (2019). "Emotional expressions reconsidered: challenges to inferring emotion from human facial movements". Psychological science in the public interest, v. 20, n. 1. https://doi.org/10.1177/1529100619889954

Berne, Eric (1959). "The mythology of dark and fair: psychiatric use of folklore". The journal of American folklore, v. 72, n. 283. https://doi.org/10.2307/538382

Beukeboom, Camiel J. (2009). "When words feel right: how affective expressions of listeners change a speaker´s language use". European journal of social psychology, v. 39, n. 5, pp. 747-756. https://doi.org/10.1002/ejsp.572

Bodie, Graham D. (2010). "A racing heart, rattling knees, and ruminative thoughts: defining, explaining, and treating public speaking anxiety". Communication education, v. 59, n. 1, pp. 70-105. https://doi.org/10.1080/03634520903443849

Boersma, Paul; Weenink, David (2021). Praat: Doing phonetics by computer (Version 6.1.30) [Software]. University of Amsterdam. http://www.praat.org

Bradley, Margaret M.; Lang, Peter J. (1994). "Measuring emotion: the self-assessment manikin and the semantic differential". Journal of behavioral therapy and experimental psychiatry, v. 25, n. 1, pp. 49-59. https://doi.org/10.1016/0005-7916(94)90063-9

Brann, Maria; Himes, Kimberly-Leezer (2010). "Perceived credibility of male versus female television newscasters". Communication research reports, v. 27, n. 3, pp. 243-252. https://doi.org/10.1080/08824091003737869

Brownlow, Sheila (1992). "Seeing is believing: facial appearance, credibility, and attitude change". Journal of nonverbal behavior, v. 16, pp. 101-115. https://doi.org/10.1007/BF00990325

Bull, Peter; Connelly, Gerry (1985). "Body movement and emphasis in speech". Journal of nonverbal behavior, v. 9, pp. 169-187. https://doi.org/10.1007/BF01000738

Carli, Linda L. (2001). "Gender and social influence". Journal of social issues, v. 57, n. 4, pp. 725- 741. https://doi.org/10.1111/0022-4537.00238

Cassidy, Brittany S.; Harding, Samuel M.; Hsu, Kristie Y.; Krendl, Anne C. (2019). "Individual differences correspond with attention to the eyes of white versus black faces". Journal of nonverbal behavior, v. 43, pp. 435-449. https://doi.org/10.1007/s10919-019-00308-z

Chang, Chingching; Bush-Hitchon, Jacqueline C. (2004). "When does gender count further insights into gender schematic processing of female candidates´ political advertisements". Sex roles, v. 51, n. 3-4, pp. 197-208. https://doi.org/10.1023/B:SERS.0000037763.47986.c2

Conway, Michael; Vartanian, Lenny R. (2000). "A status account of gender stereotypes: Beyond communality and agency". Sex roles, v. 43, n. 3-4, pp. 181-199. https://doi.org/10.1023/A:1007076813819

Cordaro, Daniel T,; Keltner, Dacher; Tshering, Sumjay; Wangchuk, Dorji; Flynn, Lisa M. (2016). "The voice conveys emotion in ten globalized cultures and one remote village in Bhutan". Emotion, v. 16, n. 1, pp. 117-128. https://doi.org/10.1037/emo0000100

Dael, Nele; Mortillaro, Marcello; Scherer, Klaus (2012). "Emotion expression in body action and posture". Emotion, v. 12, n. 5, pp. 1085-1101. https://doi.org/10.1037/a0025737

Dimberg, Ulf; Thunberg, Monika (2007). "Speech anxiety and rapid emotional reactions to angry and happy facial expressions". Scandinavian journal of psychology, v. 48, n. 4, pp. 321-328. https://doi.org/10.1111/j.1467-9450.2007.00586.x

Eagly, Alice H.; Karau, Steven J. (2002). "Role congruity theory of prejudice toward female leaders". Psychological review, v. 109, n. 3, pp. 573-598. https://doi.org/10.1037/0033-295X.109.3.573

Eagly, Alice H.; Mladinic, Antonio (1994). "Are people prejudiced against women? Some answers from research on attitudes, gender stereotypes, and judgments of competence". European review of social psychology, v. 5, pp. 1-35. https://doi.org/10.1080/14792779543000002

Eisenbarth, Hedwig; Alpers, Georg W. (2011). "Happy mouth and sad eyes: scanning emotional facial expressions". Emotion, v. 11, n. 4, pp. 860-865. https://doi.org/10.1037/a0022758

Ekman, Paul; Friesen, Wallace V.; Hager, Joseph C. (2002). Facial action coding system: the manual on CD ROM. Salt Lake City, UT: The Human Face. ASIN: 0931835011

Glazer, Trip (2017). "Looking angry and sounding sad: the perceptual analysis of emotional expression". Synthese, v. 194, pp. 3619-3643. https://doi.org/10.1007/s11229-016-1113-1

Glick, Peter; Lameiras, Maria; Fiske, Susan T.; Eckes, Thomas; Masser, Barbara; Volpato, Chiara Manganelli, Anna-Maria; Pek, Jolynn C. X.; Huang, Li-li; Sakalli-UÄŸurlu, Nuray; Rodrí­guez-Castro, Yolanda; D´Avila-Pereira, Maria-Luiza; Willemsen, Tineke M.; Brunner, Annetje; Six-Materna, Iris; Wells, Robin (2004). "Bad but bold: ambivalent attitudes toward men predict gender inequality in 16 nations". Journal of personality and social psychology, v. 86, n. 5, pp. 713-728. https://doi.org/10.1037/0022-3514.86.5.713

Guyer, Joshua J.; Briñol, Pablo; Vaughan-Johnston, Thomas I.; Fabrigar, Leandre R.; Moreno, Lorena; Petty, Richard E. (2021). "Paralinguistic features communicated through voice can affect appraisals of confidence and evaluative judgments". Journal of nonverbal behavior, v. 45, pp. 479-504. https://doi.org/10.1007/s10919-021-00374-2

Hack, Tay (2014). "Forming impressions: effects of facial expression and gender stereotypes". Psychological reports, v. 114, n. 2, pp. 557-571. https://doi.org/10.2466/07.17.PR0.114k17w6

Hancock, Adrienne B.; Stone, Matthew D.; Brundage, Shelley B.; Zeigler, Mark T. (2010). "Public speaking attitudes: does curriculum make a difference?". Journal of voice, v. 24, n. 3, pp. 302-307. https://doi.org/10.1016/j.jvoice.2008.09.007

Hoemann, Katie; Crittenden, Alyssa N.; Msafiri, Shani; Liu, Qiang; Li, Chaojie; Roberson, Debi; Ruark, Gregory A.; Gendron, Maria; Feldman-Barrett, Lisa (2019). "Context facilitates the cross cultural perception of emotion". Emotion, v. 19, n. 7, pp. 1292-1313. https://doi.org/10.1037/emo0000501

Horwitz, Elaine (2001). "Language anxiety and achievement". Annual review of applied linguistics, v. 21, pp. 112-126. https://doi.org/10.1017/S0267190501000071

Johnson, Stefanie K.; Murphy, Susan-Elaine; Zewdie, Selamawit; Reichard, Rebecca J. (2008). "The strong, sensitive type: effects of gender stereotypes and leadership prototypes on the evaluation of male and female leaders". Organizational behavior and human decision processes, v. 106, n. 1, pp. 39-60. https://doi.org/10.1016/j.obhdp.2007.12.002

Jokisch, Oliver; Iaroshenko, Viktor; Maruschke, Michael; Ding, Hongwei (2018). "Influence of age, gender and sample duration on the charisma assessment of German speakers". In: Proceedings 29th conference on electronic speech signal process, pp. 224-231.

Juslin, Patrik; Laukka, Petri (2003). "Communication of emotions in vocal expression and music performance: different channels, same code?". Psychological bulletin, v. 129, n. 5, pp. 770-814. https://doi.org/10.1037/0033-2909.129.5.770

Keltner, Dacher; Sauter, Disa; Tracy, Jessica; Cowen, Alan (2019). "Emotional expression: advances in basic emotion theory". Journal of nonverbal behavior, v. 43, n. 2, pp. 133-160. https://doi.org/10.1007/s10919-019-00293-3

Kenton, Sherron (1989). "Speaker credibility in persuasive business communication: a model which explains gender differences". The journal of business communication, v. 26, n. 2, pp. 143-157. https://doi.org/10.1177/002194368902600204

Klaas, Elena; Boukes, Mark (2020). "A woman´s got to write what a woman´s got to write: the effect of journalist´s gender on the perceived credibility of news articles". Feminist media studies, online first. https://doi.org/10.1080/14680777.2020.1838596

Krí¶ger, Bernd; Kopp, Stefan; Lowit, Anja (2010). "A model for production, perception, and acquisition of actions in face-to-face communication". Cognitive processing, v. 11, n. 30, pp. 187-205. https://doi.org/10.1007/s10339-009-0351-2

Lakoff, Robin (1973). "Language and woman´s place". Language in society, v. 2, pp. 45-79. http://www.jstor.org/stable/4166707

Leaper, Campbell; Robnett, Rachael D. (2011). "Women are more likely than men to use tentative language, aren´t they? A meta-analysis testing for gender differences and moderators". Psychology of women quarterly, v. 35, n. 1, pp. 129-142. https://doi.org/10.1177/0361684310392728

MacIntyre, Peter D.; Thivierge, Kimly A. (1995). "The effects of speaker personality on anticipated reactions to public speaking". Communication research reports, v. 12, n. 2, pp. 125-133. https://doi.org/10.1080/08824099509362048

McCroskey, James C.; Teven, Jason J. (1999). "Goodwill: a reexamination of the construct and its measurement". Communication monographs, v. 66, n. 1, pp. 90-103. https://doi.org/10.1080/03637759909376464

McNatt, D. Brian (2019). "Enhancing public speaking confidence, skills, and performance: an experiment of service-learning". The international journal of management education, v. 17, n. 2, pp. 276-285. https://doi.org/10.1016/j.ijme.2019.04.002

Men, Linjuan; Yue, Cen-April; Liu, Yonghong (2020). "Vision, passion, and care: the impact of charismatic executive leadership communication on employee trust and support for organizational change". Public relations review, v. 46, n. 3. https://doi.org/10.1016/j.pubrev.2020.101927

Nelson, Larry R.; Signorella, Margaret L.; Botti, Karin G. (2016). "Accent, gender, and perceived competence". Hispanic journal of behavioral sciences, v. 38, n. 2, pp. 166-185. https://doi.org/10.1177/0739986316632319

Pereira-dos-Santos, Kariane; Veis-Ribeiro, Vanessa; Donalonso-Siqueira, Larissa-Thais; Cruz-Brugnara, Larissa; Brugnolo-Rosa, Inaiíª-Caroline; Dassie-Leite, Ana-Paula (2020). "Does shyness influence the self-perception of vocal symptoms, public speaking, and daily communication?". Journal of voice, v. 36, n. 1, pp. 54-58. https://doi.org/10.1016/j.jvoice.2020.02.015

Petrican, Raluca; Todorov, Alexander; Grady, Cheryl (2014). "Personality at face value: Facial appearance predicts self and other personality judgments among strangers and spouses". Journal of nonverbal behavior, v. 38, pp. 259-277. https://doi.org/10.1007/s10919-014-0175-3

Ritchie, Kay L.; Palermo, Romina; Rhodes, Gillian (2017). "Forming impressions of facial attractiveness is mandatory". Scientific reports, v. 7, pp. 469. https://doi.org/10.1038/s41598-017-00526-9

Rodero, Emma (2022). "Effectiveness, attractiveness, and emotional response to voice pitch and hand gestures in public speaking". Frontiers in communication, v. 7, 869084. https://doi.org/10.3389/fcomm.2022.869084

Rodero, Emma; Larrea, Olatz; Rodrí­guez-de-Dios, Isabel; Lucas, Ignacio (2022). "The expressive balance effect: perception and physiological responses of prosody and gestures". Journal of language and social psychology, online first. https://doi.org/10.1177/0261927X221078317

Rodero, Emma; Larrea, Olatz; Vázquez, Marina (2013). "Male and female voices in commercials. Analysis of effectiveness, adequacy for product, attention and recall". Sex roles, v. 68, n. 5-6, pp. 349-362. https://doi.org/10.1007/s11199-012-0247-y

Sagie, Abraham (2009). "Effects of leader´s communication style and participative goal setting on performance and attitudes". Human performance, v. 9, n. 1, pp. 51-64. https://doi.org/10.1207/s15327043hup0901_3

Sander, David; Grandjean, Didier; Kaiser, Susanne; Wehrle, Thomas; Scherer, Klaus R. (2007). "Interaction effects of perceived gaze direction and dynamic facial expression: Evidence for appraisal theories of emotion". European journal of cognitive psychology, v. 19, n. 3, pp. 470-480. https://doi.org/10.1080/09541440600757426

Scherer, Klaus R. (1986). "Vocal affect expression: A review and a model for future research". Psychological bulletin, v. 99, n. 2, pp. 43-65. https://doi.org/10.1037/0033-2909.99.2.143

Sidanius, Jim; Pratto, Felicia (1999). Social dominance: an intergroup theory of social hierarchy and oppression. Cambridge, England: Cambridge University Press. ISBN: 978 0 521805407

Strangert, Eva; Gustafson, Joakim (2008). "What makes a good speaker? Subject ratings, acoustic measurements and perceptual evaluations". In: Proceedings of the annual conference of the international speech communication association, Interspeech, pp. 1688-1691.

Tcherkassof, Anna; Bollon, Thierry; Michel, Dubois; Pansu, Pascal; Adam, Jean-Michel (2007). "Facial expressions of emotions: a methodological contribution to the study of spontaneous and dynamic emotional faces". European journal of social psychology, v. 37, n. 6, pp. 1325-1345. https://doi.org/10.1002/ejsp.427

Van-Vugt, Mark; Grabo, Allen E. (2015). "The many faces of leadership: an evolutionary-psychology approach". Current directions in psychological science, v. 24, n. 6, pp. 484-489. https://doi.org/10.1177/0963721415601971

Wichmann, Anne (2000). "The attitudinal effects of prosody, and how they relate to emotion". In: Proceedings of the ISCA workshop on speech and emotion, pp. 143-148.

Wieser, Matthias J.; Pauli, Paul; Reicherts, Philipp; Mí¼hlberger, Andreas (2010). "Don´t look at me in anger! Enhanced processing of angry faces in anticipation of public speaking". Psychophyisiology, v. 47, n. 2, pp. 271-280. https://doi.org/10.1111/j.1469-8986.2009.00938.x

Zebrowitz, Leslie A. (2017). "First impressions from faces". Current directions in psychological science, v. 26, n. 3, pp. 237-242. https://doi.org/10.1177/0963721416683996



Cómo citar

Rodero, E., Larrea, O., & Mas, L. (2022). Speakers´ expressions before and in a public presentation. Pleasantness, emotional valence, credibility, and comprehension effects. Profesional De La información Information Professional, 31(4). https://doi.org/10.3145/epi.2022.jul.05



Artí­culos de investigación / Research articles