Neuropsychological effects of vasopressin in healthy humans.
Level 5 - mechanism / opinion, no new human data
Narrative review synthesizing animal and human experimental literature without systematic review methodology
PubMed 10074814 · doi:10.1016/s0079-6123(08)61595-2
What was done
The authors reviewed animal and human studies investigating the central nervous system effects of vasopressin (VP) in healthy individuals. The review focused on hippocampal-dependent memory formation, event-related brain potentials (ERPs), attention, arousal, and the central direct effects observed following intranasal administration.
What was found
The abstract reports no numerical data, effect sizes, or study counts. It qualitatively reports that VP improves declarative memory formation, primarily through the encoding phase. In electrophysiological studies, VP consistently increased the mismatch negativity (MMN) and P3 ERP components associated with processing novel, salient, or unexpected stimuli. VP did not appear to primarily affect voluntary selective attention or arousal.
Why it matters
This review synthesizes early electrophysiological and cognitive evidence suggesting that intranasal vasopressin modulates specific neural mechanisms linked to novelty detection and declarative memory encoding in healthy humans.
Limits
The abstract provides no quantitative metrics, confidence intervals, sample sizes, or search criteria. As a narrative review, it is vulnerable to selection bias, and the authors note that human findings remain considerably less consistent than the rodent literature.
Cited by
- context Intranasal vasopressin enhances short-term memory performance.