Within the depth-psychology corpus, 'baby' functions not merely as a developmental subject but as the primary site at which foundational psychic structures — trust, separation, object relations, self-formation — are first constituted or foreclosed. Winnicott's contributions are axial: the baby is the locus of potential space, transitional phenomena, and the paradox of separation-yet-merger with the mother, whose reliable presence or absence determines whether a capacity for creative living can be established at all. Klein reads the baby as already engaged in object relations from birth, subject to persecutory anxiety, splitting, and the earliest formations of the good-and-bad breast that will underwrite later character. Bowlby and attachment theorists approach the baby as a regulatory system whose protest at separation, stranger anxiety, and set-goal seeking are biologically grounded indices of bond quality. Post-Jungian writers such as Samuels, following Fordham, situate the baby as bearer of an a priori self that deintegrates to meet the environment. The somatic and developmental trauma traditions — Winhall, Levine, Dayton, Maté — use the baby to anchor arguments about early nervous-system patterning, attunement failure, and the embodied origins of later dysregulation. Across all these lineages, the baby stands as the irreducible empirical case against purely intrapsychic theory: what happens to it matters, constitutively and lastingly.
From the beginning the baby has maximally intense experiences in the potential space between the subjective object and the object objectively perceived, between me-extensions and the not-me.
Winnicott identifies the baby as the originary occupant of potential space, where the tension between omnipotent subjectivity and shared reality is first negotiated.
, Playing and Reality, 1971thesis
This potential space varies greatly from individual to individual, and its foundation is the baby's trust in the mother experienced over a long-enough period at the critical stage of the separation of the not-me from the me.
Winnicott argues that the entire structure of potential space — and with it cultural and creative life — is grounded in the baby's early-established trust in the mother's dependability.
, Playing and Reality, 1971thesis
The baby's separating-out of the world of objects from the self is achieved only through the absence of a space between, the potential space being filled in the way that I am describing.
Winnicott presents the paradox that separation of baby from mother is both necessary and impossible, with potential space serving as its enabling medium.
, Playing and Reality, 1971thesis
Baby and object are merged in with one another. Baby's view of the object is subjective and the mother is oriented towards the making actual of what the baby is ready to find.
Winnicott maps the developmental sequence of object relations from the baby's initial subjective merger with the object through to objective perception, locating play within this arc.
, Playing and Reality, 1971thesis
Either the mother has a breast that is, so that the baby can also be when the baby and mother are not yet separated out in the infant's rudimentary mind; or else the mother is incapable of making this contribution, in which case the baby has to develop without the capacity to be.
Winnicott argues that the mother's capacity to simply 'be' with the baby is the ontological precondition for the baby's own sense of being — its failure produces a crippled or absent capacity for existence.
, Playing and Reality, 1971thesis
Baby is living in an unresolvable paradox: The caregiver who is supposed to soothe them, and perhaps infrequently does, is the source of their pain.
Winhall uses the baby's disorganized attachment as the paradigm case for trauma's origination in an irresolvable approach-avoidance conflict with the primary caregiver.
, Treating Trauma and Addiction with the Felt Sense Polyvagal Modelthesis
The newborn infant suffers from persecutory anxiety aroused by the process of birth and by the loss of the intra-uterine situation... These experiences, culminating in the first experience of sucking, initiate, as we may assume, the relation to the 'good' mother.
Klein locates the origin of all object relations in the newborn baby's first encounter with persecutory anxiety and the compensatory establishment of the good breast.
, Envy and Gratitude and Other Works 1946-1963, 1957thesis
The self is the supraordinate personality, the totality, the God-image. It is also something the baby experiences in the presence and feel of his mother.
Samuels synthesizes the post-Jungian position that the self operates simultaneously at the level of cosmic archetype and intimate bodily experience in the baby's relation to the maternal environment.
, Jung and the Post-Jungians, 1985thesis
From the age of six or seven weeks, the infant girl C had been accustomed to play on her mother's lap during the hour preceding her evening feed... she refused milk... and went on crying. Her mother gave up the attempt to feed her, and the baby settled down contentedly on her lap.
Klein illustrates through observational detail how the baby's depressive anxiety arises from the missing mother rather than from food deprivation per se, evidencing object-relational over purely drive-based motivation.
, Envy and Gratitude and Other Works 1946-1963, 1957supporting
A lack of enjoyment of food or complete refusal of it, if combined with a deficiency in developing object-relations, indicates that the paranoid and schizoid mechanisms, which are at their height during the first three to four months of life, are excessive.
Klein uses the baby's relation to food as a diagnostic index of the degree to which paranoid-schizoid defences are overwhelming early ego functioning.
, Envy and Gratitude and Other Works 1946-1963, 1957supporting
The infant is conceived of as separate from his mother from the moment of conception and he remains a separate person. His job is to establish relationship with his mother.
Samuels articulates Fordham's post-Jungian position that the infant is constitutionally individuated from the outset, its developmental task being relational rather than merely emerging from fusion.
, Jung and the Post-Jungians, 1985supporting
Around 7 months the baby will begin to show 'stranger anxiety', becoming silent and clingy in the presence of an unknown person... These changes coincide with the onset of locomotion in the child.
Bowlby traces the developmental emergence of attachment proper in the baby at seven months, linking stranger anxiety and locomotion to the need for a more complex proximity-maintenance system.
, John Bowlby and Attachment Theory (Makers of Modern, 2014supporting
A high-speed film of a newborn baby when slowed down many times and examined frame by frame shows that tiny gestures on the part of the child are synchronized with specific tones and syllables from the parents.
Dayton draws on developmental neuroscience to argue that the baby is from birth a finely attuned participant in dyadic co-regulation, not merely a passive recipient of care.
, Emotional Sobriety: From Relationship Trauma to Resilience and Lasting Fulfillment, 2007supporting
I recall the times when, suckling each of my children, I saw his eyes open full to mine, and realized each of us was fastened to the other, not only by mouth and breast, but through our mutual gaze.
Maté uses the nursing dyad to argue that the baby and parent are neurobiologically co-constituted in mutual attachment, and that culture's erosion of these conditions is pathogenic.
, The Myth of Normal: Trauma, Illness, and Healing in a Toxic Culture, 2022supporting
She and the baby are ready to come with me now... Are they ready to let go of their burdens?
Schwartz demonstrates the IFS therapeutic use of the baby as an exiled part-self that can be retrieved, accompanied, and unburdened by the client's Self in a reparative inner re-scripting.
, Internal Family Systems Therapy, 1995supporting
Imagine an adult taking hold of the hands of a 3-month-old baby, who is lying on her back, in order to assist the baby into a sitting position. As the adult lifts the baby's arms, the adult can feel the baby beginning to cont.
Fogel uses the baby–adult physical interaction as the foundational illustration of coregulation, arguing that embodied self-awareness is constituted in dyadic, sensorimotor relation from the earliest months.
, Body Sense: The Science and Practice of Embodied Self-Awareness, 2009supporting
If a mother monkey scoops a baby close against her chest, heart rates drop. When scientists measure stress hormones, they can chart them dropping away.
Dayton marshals comparative biological evidence to establish that physical proximity to the caregiver produces measurable physiological regulation in the baby, grounding relational trauma theory in somatic reality.
, Emotional Sobriety: From Relationship Trauma to Resilience and Lasting Fulfillment, 2007supporting
As a baby he refused all except the breast, till he grew up and went over to a cup. 'He brooks no substitute', she said.
Winnicott uses the clinical vignette of a child's absolute refusal of substitutes — traceable to infancy — to illustrate how the earliest object-relations leave permanent structural traces in the personality.
, Playing and Reality, 1971supporting
She saw it was not like a baby, she saw it was a round thing with two things sticking out, it was a little jar... After that he was very fond of that little jar.
Campbell presents a mythic substitution in which the expected baby is replaced by a magical object-child, illustrating how the archetype of the miraculous birth operates across cultural narrative traditions.
, The Hero With a Thousand Faces, 2015aside
80% of right- and left-handed mothers cradle babies with their head to the left... The preference is specific to babies, as opposed to inanimate objects.
McGilchrist uses the neurological evidence of maternal left-cradling preference to argue that the right hemisphere's attentional primacy is selectively engaged by the baby, not by objects in general.
, The Master and His Emissary: The Divided Brain and the Making of the Western World, 2009aside