Article: article from journal or magazin.
Olfactory and/or visual cues for spatial navigation through ontogeny: olfactory cues enable the use of visual cues
Comparative Study Journal Article Research Support, Non-U.S. Gov't --- Old month value: Jun
This study analyzed the spatial memory capacities of rats in darkness with visual and/or olfactory cues through ontogeny. Tests were conducted with the homing board, where rats had to find the correct escape hole. Four age groups (24 days, 48 days, 3-6 months, and 12 months) were trained in 3 conditions: (a) 3 identical light cues; (b) 5 different olfactory cues; and (c) both types of cues, followed by removal of the olfactory cues. Results indicate that immature rats first take into account olfactory information but are unable to orient with only the help of discrete visual cues. Olfaction enables the use of visual information by 48-day-old rats. Visual information predominantly supports spatial cognition in adult and 12-month-old rats. Results point out cooperation between vision and olfaction for place navigation during ontogeny in rats.
Age Factors Animals *Cues Darkness Female Learning/physiology Lighting Male Photic Stimulation/*methods Rats Rats, Long-Evans Smell/*physiology Spatial Behavior/*physiology Vision/*physiology
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