title: Intermittent exposures to nanoTesla range, 7 Hz, amplitude-modulated magnetic fields increase regeneration rates in planarian.
abstract: OBJECTIVE
  To discern if physiologically and naturally-patterned electromagnetic fields presented with base frequencies of 7 Hz within the 100 nT range could facilitate regeneration in planarian similar to microTesla, 60 Hz fields.
  
  
  METHODS
  In two separate experiments planarian were decapitated and exposed to either 140 or 400 nT peak amplitude-modulated 7 Hz magnetic fields for 6 min once per hour, 8 h per night for 5 days. Daily regeneration rates and movement velocities (cm/min) were measured.
  
  
  RESULTS
  The planarian exposed to either intensity magnetic field exhibited faster regeneration of photoreceptors and auricles compared to sham field and reference groups. The magnetic field exposure accommodated 50% of the variance during the faster growth days.
  
  
  CONCLUSIONS
  Naturally-patterned, intermittently-presented weaker electromagnetic fields may produce enhanced regeneration rates in flat worms similar to those observed for 60 Hz, higher intensity fields.
authors.affiliation: Department of Biology, Laurentian University, Sudbury, Ontario, Canada.
authors.forename: Noa
authors.initials: N
authors.lastname: Gang
authors.forename: Glenn H
authors.initials: GH
authors.lastname: Parker
authors.forename: Robert M
authors.initials: RM
authors.lastname: Lafrenie
authors.forename: Michael A
authors.initials: MA
authors.lastname: Persinger
mesh_terms: D000818:Animals; D004307:Dose-Response Relationship, Radiation; D004574:Electromagnetic Fields / Q000009:adverse effects*; D009068:Movement / Q000528:radiation effects; D010932:Planarians / Q000502:physiology* / Q000528:radiation effects*; D012038:Regeneration / Q000528:radiation effects*; D013997:Time Factors