Glossary P

Phase change is a term in a Single-subjects research study that refers to a change in the conditions from one phase to another that often involves administering or stopping a treatment.

Phase locking is the firing of auditory neurons in synchrony with the phase of an auditory stimulus

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Phase of indiscriminate attachments refers to a period between 6 weeks and 6 to 7 months of age in which infants prefer social to non-social stimulation and are likely to protest whenever any adult puts them down or leaves them alone

Phase of multiple attachments is the period when infants are forming attachments to companions other than their primary attachment object

Phase of specific attachment refers to a period between 7 and 9 months of age when infants are attached to one close companion, often of course, is the mother.

Phase sequences is a term which is according to Hebb are systems of interrelated cell assemblies that form because of the simultaneous or sequential activation of cell assemblies. When a Phase sequence is activated, it causes a stream of interrelated ideas.

Phases in mourning describes mourning as a series of phases; the Bowlby/ Parkes model proposed four phases (shock and numbness; yearning and searching; disorganization and despair; reorganization); other writers have proposed three phases (shock, a period of intense or active grieving, and reestablishment of physical and mental balance, in one version; avoidance, confrontation, and accommodation, in another version) or a larger number of phases. It is one of the interpretations or theories of mourning.

Phencyclidine or PCP refer to a drug that inhibits type NMDA glutamate receptors ; at low doses, produces intoxication and slurred speech, and at higher doses, produces both positive and negative symptoms of schizophrenia. Phencyclidinea is a dissociative anesthetic.

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