Week 5-RF Lecture Flashcards
Define maternal gaze
the act of a mother looking at her infant’s face
Define mutual gaze
the act of a mother and her infant engaging in mutual eye contact (certain factors can influence the amount of time spent looking towards and processing of the infants face)
State 4 reasons why gaze is important
1.indicates our partner’s focus of attention, willingness to interact + their emotional states/interactions (Lotzin et al., 2015)
2.newborns prefer previously exposed to faces if the face exhibited direct gaze>averted gaze (Rigato et al., 2011)
3.gaze coordination improves as infants get older (Northrup et al., 2019)
4.infants showed better attentional control at 11 months if more time spent in mutual gaze at 5 months (Niedzwiecka et al., 2018)
What are two techniques used for measuring gaze?
1.eye tracking glasses
2.desktop eye tracker
Give 4 factors which might influence gaze to infant faces
1.Parenthood-show different and specific to infant facial expressions compared to non-parents
2.Sex/gender-mothers rate infants emotional expressions differently to fathers (Parsons et al., 2017)
3.Hormonal differences-mums with higher levels of oxytocin display increased gaze time towards the infants face (Kim et al., 2014)
4.Facial anomaly-Haemangioma, strabismus and clefts
How is gaze to faces affected by cleft lip and/ or
palate (CLP)?
-may disrupt visual processing of the target face (Parsons et al., 2011)
-Infants with cleft lip rated less attractive + were viewed for shorter durations than healthy infants, particularly where the cleft lip was severe (Parsons et al., 2011)
-Observers fixated significantly more on the mouth area compared to control images (TD faces) (Meyer-Marcotty et al., 2010).
-In faces depicting clefts, observers spent more time looking at the oronasal region of interest, followed by the eyes (van Schijndel et al., 2015).
-Participants fixated significantly longer on the mouths of infants with cleft lip. Severity of cleft lip was associated with the strength of fixation bias, with participants looking even longer at the mouths of infants with the most severe clefts (Rayson et al., 2017).
De Pascalis et al., 2017 experiment: background
Investigated maternal gaze during naturalistic interactions, and the influence infant age has, focusing on the transition from 1st-2nd month when social expressiveness emerges, and by infant facial configuration, focusing on the effect of having a cleft lip.
De Pascal et al., 2017 experiment: methods
30 infants (10 with a cleft lip), + their mothers, were seen at 1, 3, 5, 7, and 9 weeks. Mothers wore eye-tracking glasses whilst interacting with infants.
Fixation duration + count were calculated for general (infant face, body, and surrounding environment), and infant facial (eyes, mouth, other) areas.
What were the results of De Pascal et al., 2017 experiment?
-all ages mothers gazed mainly towards their infant’s face, but was reduced for a cleft lip.
-Within infant’s face, the eyes attracted the greatest attention, for all mums, at all ages.
-1st-2nd month, all mums increased their visual attention towards their infant’s mouth.
-the presence of a cleft lip was associated with decreased maternal gaze to the infant’s mouth.
What is excessive gaze synchrony/the effects? (Lotzin et al., 2015)
-heightened maternal emotional dysregulation associated with EGS
and tend to experience higher levels of distress and arousal
-higher distress=heightened mother-infant gaze synchrony=interferes with infants ability to self regulate, explore and respond adaptively to the environment
-parental gaze behaviour tends to occur intuitively and in line with typical development
Define mirroring
a maternal behaviour matching/mirroring the infants behaviour and plays a vital role in infant development as studies have found maternal marking increases infant social expressiveness
True or false: the presence of a cleft lip interrupts intuitive maternal behaviour
True
Mirroring in the presence of CLP (Murray et al., 2018): experiment
-two groups CLPs and control used to measure effect mirroring and maternal gaze had on infant social expressiveness focusing on change from 1st to 2nd month
-Mother + infant were observed at 1, 3, 5, 7, & 9 weeks of life
-research team coded four key behaviours: infant social expressiveness (ISE), maternal mirroring, maternal marking and maternal gaze.
Give examples of infant social expressiveness
vocalisation, smiles, pre-speech mouth movements
Mirroring in the presence of CLP (Murray et al., 2018): findings
-CLPs slower development of early social behaviours (ISE) compared to control
-Mirroring in mothers of CLP infants was reduced compared to control mothers
-mothers of control infants mirrored their infants
over 4x as often as CLP-affected mothers in month 2 compared to month 1 (maternal gaze
was a factor).