01 · Side by side

Side by side

Comparison sheet
AspectEmotional permanenceObject constancy
OriginInternet, unverifiedHartmann, 1952
LiteratureNone under that nameSubstantial
In manualsNoNo — but it's a real construct
Useful?As a descriptionAs a framework
02 · Which one you meant

Which one did you mean?

In shortReaders who land here meaning Emotional Permanence rather than Object constancy are usually searching for phrases like “why do I feel unloved when someone doesn't text back”, “emotional permanence adhd”, “forgetting someone cares when they're not there”.

Emotional Permanence

  • “why do I feel unloved when someone doesn't text back”
  • “emotional permanence adhd”
  • “forgetting someone cares when they're not there”
  • “is emotional permanence real”

Object Constancy

  • “why do I forget I love someone when I'm angry”
  • “object constancy vs object permanence”
  • “holding onto good feelings during conflict”
  • “all good or all bad thinking”
03 · Which came first

Which came first

In shortObject constancy. 1930s–40s — Melanie Klein's earlier work supplies the groundwork: infants split caregivers into all-good and all-bad before integrating them into whole people.

  1. 1930s–40s

    Object Constancy. Melanie Klein's earlier work supplies the groundwork: infants split caregivers into all-good and all-bad before integrating them into whole people.

  2. 1937, 1952, 1975

    Emotional Permanence. The two clinical concepts it borrows from are real: Piaget's object permanence, set out in La construction du réel chez l'enfant (1937; English 1954), and object constancy, introduced into psychoanalysis by Heinz Hartmann in 1952 and developed by Margaret Mahler in The Psychological Birth of the Human Infant (1975).

04 · The mix-up

Where the confusion comes from

The mix-up“Emotional permanence is a recognised psychological term.”
What's true

It's a popular coinage. It appears in no diagnostic manual and has no research literature under that name — writers using it are generally reaching for object constancy.

05 · Read either one

Read either one in full