The role of acoustic features of maternal infant-directed singing in enhancing infant sensorimotor, language and socioemotional development.

The quality of infant-directed speech (IDS) and infant-directed singing (IDSi) are considered vital to children, but empirical studies on protomusical qualities of the IDSi influencing infant development are rare. The current prospective study examines the role of IDSi acoustic features, such as pitch variability, shape and movement, and vocal amplitude vibration, timbre, and resonance, in associating with infant sensorimotor, language, and socioemotional development at six and 18 months. The sample consists of 236 Palestinian mothers from Gaza Strip singing to their six-month-olds a song by their own choice. Maternal IDSi was recorded and analyzed by the OpenSMILE- tool to depict main acoustic features of pitch frequencies, variations, and contours, vocal intensity, resonance formants, and power. The results are based on completed 219 maternal IDSi. Mothers reported about their infants' sensorimotor, language-vocalization, and socioemotional skills at six months, and psychologists tested these skills by Bayley Scales for Infant Development at 18 months. Results show that maternal IDSi characterized by wide pitch variability and rich and high vocal amplitude and vibration were associated with infants' optimal sensorimotor, language vocalization, and socioemotional skills at six months, and rich and high vocal amplitude and vibration predicted these optimal developmental skills also at 18 months. High resonance and rhythmicity formants were associated with optimal language and vocalization skills at six months. To conclude, the IDSi is considered important in enhancing newborn and risk infants' wellbeing, and the current findings argue that favorable acoustic singing qualities are crucial for optimal multidomain development across infancy.

War trauma and infant motor, cognitive, and socioemotional development: Maternal mental health and dyadic interaction as explanatory processes.

BACKGROUND: Taking care of infants in conditions of war is highly demanding and a few studies reveal the negative impact of war trauma on maternal and infant well-being. Yet, little is known regarding the influence of trauma on infant development and the potential explanatory mechanisms. First, the present study examines how mothers' prenatal exposure to traumatic war events is associated with infant cognitive, motor, and socioemotional development. Second, it analyses the mediating roles of maternal postpartum mental health problems, quality of dyadic mother-infant interaction, and earlier infant development (at six months) in the association between prenatal traumatic war events and infants' developmental skills at 18 months. METHOD: This prospective three-wave study involved 502 Palestinian pregnant females in their first trimester during the 2014 Gaza War and participated at delivery (T1) and when the child was six (T2;N = 392) and eighteen (T3; N = 386) months of age. Mothers reported their exposure to traumatic war events (human and material losses, horrors, and threat to life) at T1 and T2, and researchers photo-documented the extent of destruction at T1. Mothers reported infants' language, fine- and gross-motor, and socioemotional skills at T2 and researchers tested infants' motor, cognitive-language and socioemotional skills using the Bayley Scales of Infant development (BSID-II) at T3. Mothers reported their mental health problems (symptoms of post-traumatic stress disorder [PTSD], depression and somatization) at T2 and T3 as well as dyadic interaction quality (the emotional availability self-report, [EA-SR] brief) at T2. RESULTS: First, the structural equation model (SEM) on direct effects indicated, in contrast to our hypotheses, that maternal prenatal exposure to traumatic war events did not associate with infants' developmental skills at T2 and predicted higher level of developmental skills at T3. Second, as hypothesized, we found two negative underlying mechanisms (paths) between high exposure and low levels of motor, cognitive-language, and socioemotional skills at T3: (1) through increased maternal mental health problems at T2, which then were associated with problems at T3, and (2) through increased maternal mental health problems at T2, which then were associated with a low quality of mother-infant-interaction and low level of infant developmental skills at T2. CONCLUSION: Improving maternal mental health and encouraging close and positive dyadic interaction can be critical for infant sensorimotor, cognitive, and socioemotional development in war conditions.

It Takes Time to Unravel the Ecology of War in Gaza, Palestine: Long-Term Changes in Maternal, Newborn and Toddlers' Heavy Metal Loads, and Infant and Toddler Developmental Milestones in the Aftermath of the 2014 Military Attacks.

Toxicant, teratogen and carcinogen metal war remnants negatively affect human health. The current study analyzes, first, the persistence of heavy metal contamination in newborn hair in four cohorts across time in Gaza Palestine; second, the change in mothers' and infants' heavy metal contamination from birth to toddlerhood; and third, the impact of heavy metal contamination on infants' and toddlers' growth and development. The hair of newborns was analyzed for twelve heavy metals by Inductively Coupled Plasma Mass Spectrometry (ICP/MS) in cohorts recruited at delivery in 2011, 2015, 2016, and 2018-2019. In the 2015 cohort, mothers' hair samples were taken at delivery, and toddlers and mothers hair were also analyzed 18 months later. Growth levels of infants at six months and toddlers at 18 months were assessed according to World Health Organization (WHO) standards according to a mother report and pediatric check-up, respectively. 1. The level of metal contamination in utero was persistently high across 8 years, 2011, 2015, 2016, 2019, following three major military attacks (2009, 2012, 2014). 2. The 2015 cohort babies exposed in utero to attacks in 2014 at six months showed association of high load at birth in mother of arsenic and in newborn of barium with underweight, of barium and molybdenum in newborn with stunting. 3. Eighteen months after birth, toddlers had a higher level of metals in hairs than when they were born, while, in their mothers, such levels were similar to those at delivery, confirming persistence in the environment of war remnants. Underweight and stunting, both in infants and toddlers, were higher than reported for previous years, as well as being progressive within the cohort. Severe environmental factors, metal contamination and food insecurity put Gaza's infant health at risk.

Caregiving representations in war conditions: Associations with maternal trauma, mental health, and mother-infant interaction.

Risk features in mothers' caregiving representations remain understudied in dangerous environments where infants most urgently need protective parenting. This pilot study examines the feasibility of a novel coding system for the Parent Development Interview (PDI) interview (ARR, Assessment of Representational Risk) in assessing 50 war-exposed Palestinian mothers' caregiving representations. First, we explored the content and structure of risks in the representations. Second, we examined associations between the high-risk representations, mothers' pre- and postnatal exposure to traumatic war events (TWE), depressive and post-traumatic stress disorder (PTSD) symptoms, and self-rated emotional availability (EA) with their 1-year-old infants. Following three dimensions of high-risk caregiving representations were identified: self/dyadic dysregulation, unavailable, and fearful. Mothers' prenatal depressive symptoms were associated with dysregulating and fearful representations, and their postnatal PTSD with fearful representations. TWE were not associated with the high-risk representations. Moreover, mothers of boys reported more fearful representations, and mothers with financial difficulties reported more unavailable representations. TWE and high-risk representations were not associated with EA. However, qualitative analysis of the representations indicated risks in the mother-infant relationship. Further, older mothers and mothers with postnatal PTSD reported lower EA. Cultural variance in caregiving representations and the use of self-report measures among traumatized mothers are discussed.

Toxic Environment of war: Maternal prenatal heavy metal load predicts infant emotional development.

BACKGROUND: People in war zones are exposed to heavy metal contamination deriving from new-generation weapons, in addition to exposure to psychologically traumatizing war events. Pregnant women and their children-to-be are particularly vulnerable to both biological and psychological war effects. OBJECTIVE: The aim of the current study was to analyse the impact of maternal prenatal heavy metal contamination on infant emotional development and to examine the potential moderating role of maternal symptoms of post-traumatic stress disorder (PTSD) in the association between heavy metal load and infant emotional development. METHODS: The participants were 502 Palestinian mothers, pregnant in their first trimester during the 2014 War on Gaza. The mothers were recruited at their delivery (T1) and followed at the infants' age of 6-7 months (T2; N = 392). The load of five weapon-related heavy metals (chromium, mercury, vanadium, strontium, and uranium) was analysed by Inductively Coupled Plasma Mass Spectrometry (ICP/MS) from mothers' hair samples at childbirth (T1). Assessment of maternal PTSD symptoms was based on the Harvard Trauma Questionnaire (HTQ) and infant emotional development on the Infant Behavior Questionnaire (IBQ), both reported by mothers (T2). RESULTS: Two of the analysed metals, chromium and uranium, adversely predicted children's early emotional development, indicated by decreased positive affectivity, increased negative emotionality, and problems in early orientation and regulation. Mother's PTSD did not moderate the impact of heavy metal contamination on children's emotional development. CONCLUSIONS: Adverse impact of war is not limited to those who experience it directly, but is passed on to future generations through multiple mechanisms. International organizations are obliged to protect parents and infants from the modern weaponry in wars.

Is silence about trauma harmful for children? Transgenerational communication in Palestinian families.

Style of family communication is considered important in the transgenerational transmission of trauma. This study had three aims: first, to identify the contents of family communication about past national trauma; second, to examine how parents' current war trauma is associated with transgenerational communication; and third, to analyze the associations between transgenerational communication and children's mental health, measured as posttraumatic stress disorder (PTSD), depression and psychological distress. The study sample consisted of 170 Palestinian families in Gaza Strip, in which both mothers (n = 170) and fathers (n = 170) participated, each with their 11-13-year-old child. Mothers and fathers responded separately to three questions: 1) what did their own parents tell them about the War of 1948, Nakba?; 2) what did they tell their own children about the Nakba?; and 3) What did they tell their own children about the 1967 Arab-Israeli War and military occupation? Current war trauma, as reported separately by mothers, fathers and their children, refers to the Gaza War 2008/09. Children reported their symptoms of PTSD, depression, and psychological distress. Results revealed seven communication content categories and one category indicating maintaining silence about the traumas. Fathers' high exposure to current war trauma was associated with a higher level of communicating facts, reasons, and meanings regarding the1948 and 1967 wars, and mothers' high exposure to current war trauma was associated with a lower level of maintaining silence. Family communication about facts, reasons, and meanings was significantly associated with children not showing PTSD and marginally with not showing psychological distress, while maintaining silence was not associated with children's mental health.

Maternal experience of their infants' crying in the context of war trauma: Determinants and consequences.

We examined, first, how prenatal maternal mental health and war trauma predicted mothers' experience of their infant crying, indicated by emotions, cognitions, and behavior; and second, how these experiences influenced the mother-infant interaction and infant development. Participants were 511 Palestinian mothers from the Gaza Strip, reporting their war trauma, symptoms of posttraumatic stress disorder (PTSD), depression, and perceived stress during pregnancy (Time 1). They reported experiences of infant crying at 4 months (Time 2), and the mother-infant interaction and infant sensorimotor and language development at 12 months of infants' age (Time 3). Results revealed that maternal mental health problems, but not war trauma, were important to experiences of infant crying. A high level of PTSD symptoms predicted negative emotions evoked by infant crying, and high depressive symptoms predicted low active and positive responses to crying. Unexpectedly, high prenatal perceived stress predicted high active and positive responsiveness. Concerning the consequences, mothers' sensitive interpretation of infant crying predicted optimal infant sensorimotor development, and mothers' active and positive responses predicted high emotional availability in mother-infant interaction. Crying is the first communication tool for infants, and mothers' sensitive responses to crying contribute to infant well-being. Therefore, reinforcing mother's optimal responses is important when helping war-affected dyads.

Examinamos, primero, cómo la prenatal salud mental materna y el trauma de guerra predecían la manera como las madres experimentan el llanto de sus infantes, según lo indicaban las emociones, la cognición y la conducta, y segundo, cómo esas experiencias influían en la interacción madre-infante y el desarrollo del infante. Las participantes fueron 511 madres palestinas de la franja territorial de Gaza, quienes reportaron sobre su trauma de guerra, los síntomas del trastorno de estrés postraumático (PTSD), la depresión y la percepción de estrés durante el embarazo (T1). Ellas reportaron experiencias de llanto del infante a los cuatro meses (T2), y la interacción madre-infante y el desarrollo sensorial-motor y de lenguaje del infante a los 12 meses de edad del infante (T3). Los resultados revelaron que los problemas de salud mental maternos, aunque no así el trauma de guerra, eran importantes para experimentar el llanto del infante. Un alto nivel de síntomas de PTSD predijo las negativas emociones evocadas por el llanto del infante, y altos síntomas depresivos reducen las activas y positivas respuestas al llanto. Inesperadamente, la alta precepción de estrés prenatal predijo una alta sensibilidad activa y positiva. Con respecto a las consecuencias, la sensible interpretación que las madres tenían del llanto de sus infantes predijo el desarrollo sensorial-motor del infante, y las respuestas activas y positivas de la madre predijeron la alta disponibilidad emocional en la interacción madre-infante. El llanto es la primera herramienta de comunicación para los infantes, y las respuestas sensibles de las madres al llanto contribuyen al bienestar del infante. Por tanto, es importante reforzar las respuestas óptimas de las madres cuando se trata de ayudar a díadas afectadas por la guerra.

Nous avons d'abord examiné comment la santé mentale maternelle prénatale et le traumatisme de guerre ont prédit l'expérience que les mères se faisaient de leur nourrisson pleurant, indiquée par les émotions, les cognitions et le comportement, et ensuite comment ces expériences ont influencé l'interaction mère-bébé et le développement du nourrisson. Les participantes ont consisté en 511 mères palestiniennes de la bande de Gaza, faisant état de leur traumatisme lié à la guerre, de symptômes de stress posttraumatique (TSPT), de dépression et de stress perçu durant la grossesse (T1). Ces participantes ont fait état d'expériences de leur nourrisson pleurant au cours de quatre mois (T2) et de l'interaction mère-nourrisson et du développement sensorimoteur et du développement du langage à douze mois d'âge pour le nourrisson (T3). Les résultats ont révélé que les problèmes de santé mentale de la mère, et non le trauma de la guerre, étaient importants pour l'expérience du bébé pleurant. Un niveau élevé de symptômes TSPT a prédit les émotions négatives évoquées par le bébé pleurant, et des symptômes dépressifs élevés ont prédit des réactions positives et peu actives aux pleurs. Contre toute attente, un stress perçu prénatal élevé a prédit une réaction positive et active élevée. Pour ce qui concerne les conséquences, l'interprétation sensible des mères de leur bébé pleurant a prédit le développement sensorimoteur optimal du bébé et les réactions actives et positives des mères ont prédit une disponibilité émotionnelle élevée dans l'interaction mère-nourrisson. Pleurer est le premier outil de communication pour les bébés et les réactions sensibles des mères aux pleurs contribuent au bien-être du bébé. Il est donc important de renforcer les réactions optimales des mères lorsqu'on aide les dyades affectées par la guerre.

The role of maternal attachment in mental health and dyadic relationships in war trauma.

BACKGROUND: Infant care is a demanding task in dangerous war conditions, but research on the wellbeing of mother-infant dyads is mainly available in peaceful conditions. Knowledge on protective versus risking processes is especially vital for tailoring effective help, and the present study proposes the maternal attachment style to play an important role in dangerous war conditions. OBJECTIVE: The study analyses, first, how various traumatic war events, such as losses, horrors and life-threat, are associated with maternal mental health and dyadic mother-infant interaction quality, indicated by maternal emotional availability (EA). Second, it tests a hypothesis that maternal insecure attachment risks and secure attachment protects good mental health and optimal EA from negative impacts of traumatic war events. METHOD: The prospective three-wave study involved 502 Palestinian mothers, who were pregnant during the 2014 War on Gaza, and participated at delivery (T1), and when the infant was seven (T2; N = 392) and eighteen (T3; N = 386) months. Mothers reported about war events at T1 and T2 (death and losses, witnessing horrors and life-threat), and posttraumatic stress disorder (PTSD) and depression symptoms at T2 and T3. Dyadic interaction quality was assessed by mother-perceived emotional availability (EA) scale at T2 and T3, and attachment styles by mothers' self-reports at T3. RESULTS: Death and losses, witnessing horrors, and life-threat were all associated with a high level of maternal PTSD, but only at T2, whereas death and losses were associated with her depressive symptoms both at T2 and T3. Witnessing horrors was associated with a low close and positive and a high distant and negative emotional availability at T2 and T3. As hypothesized, maternal avoidant attachment was associated with a low level of close and positive EA in general, and especially when the dyads were exposed to a high level of traumatic war events, thus indicating a risking function. Against the hypothesis, secure attachment did not show any protective function on emotional availability, while, unexpectedly, maternal preoccupied attachment was associated with close and positive emotional availability, when dyads were exposed to a high level of traumatic war events. CONCLUSION: Mothering in conditions of war and military violence is an overwhelmingly demanding task, and mother-infant dyads need legal, social, and psychological assistance. Knowledge and reflection of unique responses and meanings of different attachment styles would be fruitful in tailoring effective help.

Society, individual, family, and school factors contributing to child mental health in war: The ecological-theory perspective.

Mental health problems are common in war-affected areas, but children have different levels of vulnerability. Based on ecological theory (Bronfenbrenner, 2005), this study analyses how factors related to the child (cognitive capacity), their family (parental depression and parenting styles), and their school (teachers' practices and peer relations) mediate the association between traumatic stress (traumatic war experiences and stressful life-events) and child mental health (posttraumatic stress and psychological distress symptoms). The participants were 303 Palestinian children (51.2% girls) of 10-13 years (M = 10.94 ± 0.50) and their parents from the Gaza Strip. The children filled in questionnaires during school classes and the parents did so at their homes. The results of structural equation modeling substantiated the hypothesis that parental depression, poor parenting and low-quality peer relations mediated between traumatic stress and children's mental health problems. Contrary to the hypothesis, child-related factors did not mediate that association. To conclude, parents and peers provide important age-salient social resources for children in war conditions, and psychosocial interventions should therefore enhance their beneficial functions.

The protective role of maternal post-traumatic growth and cognitive trauma processing in Palestinian mothers and infants: a longitudinal study.

BACKGROUND: Women at pre partum and post partum are especially susceptible to war trauma because they struggle to protect their infants from danger. Trauma research suggests increased problems in maternal mental health and infant development. Yet many cognitive-emotional processes affect the trauma survivors' mental health, such as post-traumatic growth and post-traumatic cognition. The aim of this study was to examine whether a mother's high post-traumatic growth and optimal post-traumatic cognition could protect their own mental health and their infant's stress regulation from the effects of traumatic war experiences. METHODS: This three-wave prospective study involved Palestinian women living in the Gaza Strip who were at the second trimester of pregnancy (T1), women with infants aged 4 months (T2), and women with children aged 12 months (T3) months. The participants reported their war experiences in a 30-item checklist of losses, destruction, and atrocities in the 2008-09, 2012, and 2014 military offensives. Post-traumatic growth was assessed by a 21-item scale and post-traumatic cognition by a 36-item scale. Maternal mental health was assessed by post-traumatic stress disorder (PTSD), depressive, anxiety, and dissociation symptoms at T1 and T3, and infants' stress regulation was assessed with the Infant Behaviour Questionnaire at T2 and T3. FINDINGS: We included 511 women at T1, 481 women at T2, and 454 women at T3. High maternal post-traumatic growth and post-traumatic cognition had protective roles. Post-traumatic growth had a protective effect on maternal mental health since severe exposure to traumatic war experiences was not associated with maternal PTSD, depression, and dissociation if women showed high post-traumatic growth, as indicated by the significant interaction effect between post-traumatic growth and war trauma on each of the three symptoms. Post-traumatic cognition had a protective effect on infant development since severe exposure was not associated with dysfunctional infant emotion regulation when mothers reported optimal post-traumatic cognition, as indicated by the significant interaction effect between post-traumatic cognition and war trauma on each of negative affectivity and surgency or extraversion. INTERPRETATION: The nature of cognitive emotional processing of war trauma could explain the distinct roles of post-traumatic growth and post-traumatic cognition. High post-traumatic growth involves increased social affiliation, spiritual awareness, and psychological strengths resulting from painful and traumatic experiences. In the national struggle for independence, post-traumatic growth is often associated with heroism and even hardiness, which might benefit a mother's mental health but not their infant's wellbeing. Optimal post-traumatic cognition indicates successful and harmonious trauma processing, which enables mothers to be more reflective and sensitive to their infant's needs. Interventions to promote healthy infant development in war settings should encourage and support mothers' effective cognitive-emotional processing of traumatic experiences. FUNDING: The Academy of Finland and University of Tampere, Finland.

The protective role of maternal posttraumatic growth and cognitive trauma processing among Palestinian mothers and infants.

War survivors use multiple cognitive and emotional processes to protect their mental health from the negative impacts of trauma. Because mothers and infants may be especially vulnerable to trauma in conditions of war, it is urgent to determine which cognitive and emotional processes are effective for preventing negative trauma impacts." This study examined whether mothers' high posttraumatic growth (PTG) and positive posttraumatic cognitions (PTC) protected (a) their own mental health and (b) their infants' stress regulation and sensorimotor and language development from the effects of war trauma. The participants were 511 Palestinian mothers and their infants living in the Gaza strip. The mothers were interviewed in their second trimester of pregnancy (T1) as well as when the infant was four months (T2) and twelve months (T3). Mothers reported posttraumatic growth (PTG; Tedeschi & Calhoun, 1996) at T1 and posttraumatic cognitions (PTCI; Foa et al., 1999) at T2. They also reported their exposure to traumatic war events both at T1 and T3 and described their mental health conditions (e.g., PTSD and/or depressive and dissociation symptoms) at T3. The Infant Behaviour Questionnaire (IBQ) was used to measure infants' stress regulation at T2 and sensorimotor and language development at T3. The results, based on regression analyses with interaction terms between trauma and PTG, showed that high levels of traumatic war events were not associated with high levels of PTSD, depressive, or dissociation symptoms among mothers showing high levels of PTG. This suggests that PTG may protect maternal mental health from the effects of trauma. In turn, positive maternal PTCs appeared to protect the infants' stress regulation from the effects of war trauma. The study concludes by discussing ways to develop and implement preventive interventions for mother-infant dyads in war conditions.

Maternal pre- and postnatal mental health and infant development in war conditions: The Gaza Infant Study.

OBJECTIVE: Women and their infants need special protection in war context, as traumatic events can risk maternal mental and obstetric health and compromise infant development. This prospective study examined, first, how exposure to war trauma is associated with maternal mental health in pregnancy and postpartum, obstetric and newborn health, and infant development. Second, it tested the role of maternal mental health and obstetric risks in mediating between war trauma and infant development. METHOD: Palestinian women (N = 511) from the Gaza strip participated during pregnancy (T1) and at 4 (T2) and 12 (T3) months postpartum. They reported PTSD, depressive, anxiety, and dissociative symptoms, as well as pregnancy complications, newborn health risks such as prematurity, and infant sensorimotor and language development. RESULTS: First, exposure to war trauma was associated with high levels of maternal mental health and complications at pregnancy, and with increased postpartum mental health symptoms, but exposure was not directly associated with newborn health risks or problems in infant development. Second, maternal mental health both in pregnancy and postpartum, but not pregnancy complications or newborn health, mediated the negative impact of war trauma on infant sensorimotor and language development at 12 months. CONCLUSION: Interventions to protect early child development in war conditions should be tailored to support maternal mental health. (PsycINFO Database Record

MATERNAL TRAUMA AFFECTS PRENATAL MENTAL HEALTH AND INFANT STRESS REGULATION AMONG PALESTINIAN DYADS.

We examined how diverse and cumulated traumatic experiences predicted maternal prenatal mental health and infant stress regulation in war conditions and whether maternal mental health mediated the association between trauma and infant stress regulation. Participants were 511 Palestinian mothers from the Gaza Strip who reported exposure to current war trauma (WT), past childhood emotional (CEA) and physical abuse, socioeconomic status (SES), prenatal mental health problems (posttraumatic stress disorder and depression symptoms), and perceived stress during their secondtrimester of pregnancy as well as infant stress regulation at 4 months. While all trauma types were associated with high levels of prenatal symptoms, CEA had the most wide-ranging effects and was uniquely associated with depression symptoms. Concerning infant stress regulation, mothers' CEA predicted negative affectivity, but only among mothers with low WT. Against hypothesis, the effects of maternal trauma on infant stress regulation were not mediated by mental health symptoms. Mothers' higher SES was associated with better infant stress regulation whereas infant prematurity and male sex predisposed for difficulties. Our findings suggest that maternal childhood abuse, especially CEA, should be a central treatment target among war-exposed families. Cumulated psychosocial stressors might increase the risk for transgenerational problems.

A cross sectional study of the relationship between the exposure of pregnant women to military attacks in 2014 in Gaza and the load of heavy metal contaminants in the hair of mothers and newborns.

OBJECTIVE: Metal contamination of humans in war areas has rarely been investigated. Weaponry's heavy metals become environmentally stable war remnants and accumulate in living things. They also pose health risks in terms of prenatal intake, with potential long term risks for reproductive and children's health. We studied the contribution of military attacks to the load of 23 metals in the hair of Palestinian women in the Gaza Strip, who were pregnant at the time of the military attacks in 2014, and their newborns. We compared the metal load in the mothers with values for adult hair from outside the war area (RHS) as the reference. We investigated heavy metals trans-passing in utero, and assessed if the heavy metal intake could derive from sources unrelated to the war. DESIGN: Cross sectional study. PARTICIPANTS AND SETTING: Cross sectional convenience sample of 502 mothers delivering in the Gaza Strip and their newborns. MAIN OUTCOME MEASURED: Measure of the load of heavy metals in mother and newborn hair by inductively coupled plasma-mass spectrometry (ICP-MS). Comparison of metal loads with the reference RHS, between groups with different exposures to attacks and house/agriculture chemicals, and between mothers and newborns. Data for birth registry and for exposures to war and other known risk factors were obtained at interview with the mothers. Photographic documentation of damage from military attacks was obtained. RESULTS: The whole cross sectional convenience sample had a significantly higher load of heavy metals than the reference RHS. Women exposed to military attacks had a significantly higher load of heavy metals than those not exposed; the load in newborns correlated positively with the mothers' load. No significant difference was found between users/non-users of house/agriculture chemicals. No other known confounder was identified. CONCLUSIONS: High heavy metal loads in mothers, reflected in those of their newborns, were associated with exposure to military attacks, posing a risk of immediate and long term negative outcomes for pregnancy and child health. Surveillance, biomonitoring and further research are recommended. Implications for general and public health are discussed.

War trauma and maternal-fetal attachment predicting maternal mental health, infant development, and dyadic interaction in Palestinian families.

Optimal maternal-fetal attachment (MFA) is believed to be beneficial for infant well-being and dyadic interaction, but research is scarce in general and among risk populations. Our study involved dyads living in war conditions and examined how traumatic war trauma associates with MFA and which factors mediate that association. It also modeled the role of MFA in predicting newborn health, infant development, mother-infant interaction, and maternal postpartum mental health. Palestinian women from the Gaza Strip (N = 511) participated during their second trimester (T1), and when their infants were 4 (T2) and 12 (T3) months. Mothers reported MFA (interaction with, attributions to, and fantasies about the fetus), social support, and prenatal mental health (post-traumatic stress disorder, depression, and anxiety) at T1, newborn health at T2, and the postpartum mental health, infant's sensorimotor and language development, and mother-infant interaction (emotional availability) at T3. Results revealed, first, that war trauma was not directly associated with MFA but that it was mediated through a low level of social support and high level of maternal prenatal mental health problems. Second, intensive MFA predicted optimal mother-reported infant's sensorimotor and language development and mother-infant emotional availability but not newborn health or maternal postpartum mental health.