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.. but Mummy and Daddy make
baby laugh equally often
Age
Frequency
020406080
3m 6m 9m 1Y 1;3m 1;6m 1;9m 2Y 2;3m 2;6m
Caspa...
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What makes babies laugh? Results from BabyLaughter.net survey.

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The laughter of little babies is entrancing, infections and a surprising key component of their successful development. The baby laughter project surveyed over 1,500 parents of children under 2 ½ years old about their laughing babies. We asked them who and what made their babies laugh, we asked about favourite toys, games and and even asked them to send us videos of the things that made their babies laugh. This allowed us to look at the positive side of infant development which behavioural specialists often overlook. We found that laughter and happiness are even more important in the lives of babies than they are for adults.

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What makes babies laugh? Results from BabyLaughter.net survey.

  1. 1. .. but Mummy and Daddy make baby laugh equally often Age Frequency 020406080 3m 6m 9m 1Y 1;3m 1;6m 1;9m 2Y 2;3m 2;6m Caspar Addyman (c.addyman@bbk.ac.uk) An online survey of baby laughter This paper reports on the findings of the Baby Laughter project (http://babylaughter.net) [1]. A set of online questions for parents of children under 2½ years asked them about things which make their babies laugh. This is a strangely neglected topic in developmental psychology but one which could provide interesting new insights into infant development. By finding out what situations, people and events babies find most amusing and entertaining at different ages, we hope to learn about infants’ social and emotional development. Background n  Babies first smile around 1.5 months and first laugh around 3.5 months. But with some individual variation. n  Most things get funnier with age n  Parents think boys laugh more than girls n  Peekaboo is consistenly popular game but tickling most reliable way get a baby to laugh n  Maybe Freud was wrong! Conclusions References 1.  Addyman, C., & Addyman, I. (2013). The science of baby laughter. Comedy Studies, 4(2), 143– 153. 2.  Gartstein, M. & Rothbart, M., (2003). Studying infant temperament via the Revised Infant Behavior Questionnaire. Infant Behavior and Development, 26(1), pp.64–86. 3.  Putnam, S. P., Gartstein, M. A., & Rothbart, M. K. (2006). Measurement of fine-grained aspects of toddler temperament: The Early Childhood Behavior Questionnaire. Infant Behavior and Development, 29(3), 386–401 Results Methods http://BabyLaughter.net Participants Funniest Toys and Games? What one thing is guaranteed to make your baby laugh? Data was collected via an online questionnaire that ran from Sept. 2012 – Nov. 2013. Particular questions of interest include: What toys, games, sensations and interactions cause babies to laugh the most? How early does social laughter start? What (in parents views) are the primary causes of laughter in infancy? Parents were given the option to complete a temperament questionnaire: •  Under 1 year -Very Short Infant Behaviour Questionnaire, [IBQ - Gartstein and Rothbart, 2003], •  1-2½ years Very Short Early Childhood Behaviour Questionnaire [ECBQ - Putnam, Garstein and Rothbart, 2006] Temprament and individual differences United Kingdom – 753, United States - 366, Canada - 71, Mexico - 48, Australia - 45, Philippines - 24, Germany - 17, Netherlands - 17, Pakistan - 15, India - 14, France, Spain, Ireland, Italy, South Africa, Turkey, Belgium, Brazil, Colombia, New Zealand, Argentina, Egypt, Greece, Portugal, Chile, Latvia, Malaysia, Denmark, Finland, Israel, Romania, Singapore, Sweden, Switzerland, United Arab Emirates, Albania, Armenia, Austria, Croatia, Georgia, Hong Kong, Indonesia, Jordan, Kuwait, Lebanon, Norway, Trinidad and Tobago, Venezuela, Bahamas , Bahrain , China , Congo , Czech Republic , Hungary , Kenya , Lesotho , Palestinian Territory , Panama , Peru , Puerto Rico , Qatar , Saint Vincent and the Grenadines , Saudi Arabia , Slovenia , South Korea , Sudan , Thailand , Tunisia , Uruguay , Vatican City, Zambia < 1yr N = 790 > 1yr N = 447 Boys 702 Girls 579 Twins 25 0 1 2 3 4 5 6 7 8 9 10 Response to pleasant sensation M= 8.84 ± 2.29 0100 0 1 2 3 4 5 6 7 8 9 10 Excitement M= 8.79 ± 2.1 0100 0 1 2 3 4 5 6 7 8 9 10 Because they are happy M= 8.46 ± 2.28 0100 0 1 2 3 4 5 6 7 8 9 10 Response to surprise M= 8.13 ± 2.66 0100 0 1 2 3 4 5 6 7 8 9 10 Copying others M= 8.46 ± 2.38 0100 0 1 2 3 4 5 6 7 8 9 10 Response to exaggerated action M= 7.95 ± 2.64 0100 0 1 2 3 4 5 6 7 8 9 10 Bond with caregiver M= 7.48 ± 2.74 050 0 1 2 3 4 5 6 7 8 9 10 Communication M= 7.4 ± 2.75 050 0 1 2 3 4 5 6 7 8 9 10 Response to silly/unusual M= 6.35 ± 3.22 050100 0 1 2 3 4 5 6 7 8 9 10 Knows he/she being naughty M= 4.7 ± 3.34 0100 0 1 2 3 4 5 6 7 8 9 10 Fear averted M= 3.95 ± 2.96 0100 0 1 2 3 4 5 6 7 8 9 10 Release tension M= 3.75 ± 2.83 0100 Why are babies laughing? Girls laugh 37 times vs Boys 48.5 times per day t(751) = 2.2544, p = 0.024 (Parents report that..) boys laugh significantly more often per day than girls. Age of first smile Months 0 2 4 6 0200400 M= 1.43 ± 0.93 Age of first laugh Months 0 5 10 15 0200400 M= 3.55 ± 1.58 Age of first social smile Months 0 2 4 6 8 12 050150250 M= 2.23 ± 1.23 Age of first deliberate smile Months 0 5 10 20 050100150 M= 4.13 ± 3.06 Age of first hysterics Months 0 5 10 20 050100150200 M= 5.2 ± 2.58 Never Onceortwice Occasionally Sometimes Often Veryoften Always Baby Falling Over 0100 Never Onceortwice Occasionally Sometimes Often Veryoften Always Other People Falling Over 0100 Infant Schadenfreude? FirstSm ile 0.40*** 0.00 0.02 −0.06 0.11 0.02 FirstLaugh 0.07 0.01 −0.06 0.06 0.03 Laughs perday 0.39*** 0.22** −0.01 0.14− D aily Laughs 0.35*** 0.08 0.11 Surgency 0.02 0.24** N egative Affect −0.11 EffortfulC ontrol FirstSm ile 0.40*** 0.00 0.02 0.09 −0.02 −0.04 FirstLaugh 0.07 0.01 0.06 0.01 −0.05 Laughs perday 0.39*** 0.38*** −0.02 0.03 D aily Laughs 0.40*** 0.02 0.11− Surgency 0.25*** 0.23*** N egative Affe ct −0.05 Effo rtfulC ontrol IBQ ECBQ MealBreast −0.13 NappyChanging −0.12 MealBottle −0.07 EarlyMorning −0.02 MealBabyFood 0.01 ImitatingBaby 0.03 GettingDressed 0.04 BabyFallingOver 0.1 FunnyNoises 0.11 StrokingBaby 0.11 Breakfast 0.11 CountingGames 0.12 MidMorning 0.12 Mirrors 0.12 FunnyFaces 0.13 LunchTime 0.15 PretendFear 0.16 BlowingRaspberries 0.18 HidingObjects 0.19 FunnyActions 0.22 BlowingBubbles 0.28 BathTime 0.3 PeekabooParentHide 0.31 PeekabooBabyHide 0.32 WatchingTelevision 0.34 ReadingtoBaby 0.38 OthersFallingOver 0.38 TicklingBody 0.39 TicklingHands 0.4 TicklingToes 0.41 HoldingUpsidedown 0.44 RoughAndTumble 0.45 ChasingGames 0.46 BangingThings 0.47 MealSolids 0.48 PouringWater 0.56 KnockingThingsOver 0.6 BuildingThings 0.63 Correlations of age and amusement N = 262 N = 187

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