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Distinctive Responses in the Medial Amygdala to Same-Species and Different-Species Pheromones
TLDR
This is the first evidence for an important role of the amygdala, a limbic structure known to be involved in social and emotional behavior, in discrimination of species specificity in chemosignals. Expand
Vomeronasal, Olfactory, Hormonal Convergence in the Brain: Cooperation or Coincidence? a
  • M. Meredith
  • Biology, Medicine
  • Annals of the New York Academy of Sciences
  • 1 November 1998
TLDR
Convergent vomeronasal and olfactory chemosensory input into a common circuit considered important for mating in male golden hamsters is reviewed and no activation of LHRH neurons has been demonstrated in males exposed to such chemosignals. Expand
Categorization of biologically relevant chemical signals in the medial amygdala
TLDR
The results suggest that the amygdala categorizes stimuli according to the biological relevance for the tested species, and patterns of IEG expression in medial amygdala may provide glimpses of a tertiary sorting of chemosensory signals beyond the primary-level selectivity of chemOSensory neurons and the secondary sorting in main and accessory olfactory bulbs. Expand
Efferent control of stimulus access to the hamster vomeronasal organ.
TLDR
The vomeronasal organ can be adequately stimulated by activation of the pumping mechanism in the presence of odour, and the time course of neuronal response in the accessory olfactory bulb is more rapid than predicted and cannot be ruled out as a possible sensory pathway in many odour related behaviours. Expand
Patterned response to odor in mammalian olfactory bulb: the influence of intensity.
  • M. Meredith
  • Psychology, Medicine
  • Journal of neurophysiology
  • 1 September 1986
TLDR
Magnitude of response is difficult to define when a single response includes both increases and decreases of firing rate but more than half of the neurons that responded to more than one stimulus concentration clearly had nonmonotonic intensity-response functions. Expand
Sensory processing in the main and accessory olfactory systems: Comparisons and contrasts
  • M. Meredith
  • Biology, Medicine
  • The Journal of Steroid Biochemistry and Molecular…
  • 1 October 1991
TLDR
Experiments where the VNOs or other parts of the accessory olfactory pathway were ablated indicate that the system is important in many behavioral and physiological responses to pheromones, some of which may be proteins. Expand
Human vomeronasal organ function: a critical review of best and worst cases.
TLDR
This review is an attempt to weigh the evidence for and against human VNO function, to deconvolve that question from the question of pheromone communication and finally to provide a working definition of 'pheromone'. Expand
c-fos expression in vomeronasal pathways of mated or pheromone- stimulated male golden hamsters: contributions from vomeronasal sensory input and expression related to mating performance
TLDR
Fos expression in the caudal encapsulated pmBNST was evident in all groups of animals that performed chemosensory investigation, regardless of VN status or mating, suggesting that this region either directs or responds to chemoinvestigation. Expand
Experience facilitates vomeronasal and olfactory influence on Fos expression in medial preoptic area during pheromone exposure or mating in male hamsters
TLDR
The change in access of chemosensory input to medial preoptic area after experience suggests that an experience-dependent synaptic modulation in this pathway, perhaps in the amygdala, may underlie some changes in mating behavior with experience. Expand
Chronic recording of vomeronasal pump activation in awake behaving hamsters
  • M. Meredith
  • Medicine, Biology
  • Physiology & Behavior
  • 1 August 1994
TLDR
Electrodes, implanted inside the vomeronasal organ capsule of male hamsters, recorded changes in electrical properties accompanying vomer onasal pump activation, which suggest that blood vessels are constricted repetitively by bursts of activity in the vasomotor sympathetic nerves each time the pump is triggered. Expand
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