Olfactory bulb connections with basal rhinencephalon in the ferret: an evoked potential and neuroanatomical study

The Journal of Comparative Neurology
B J Dennis, D I KERR

Abstract

The lateral olfactory tract (LOT) of the ferret has been shown to project to most of the pyriform lobe, as in the cat. Only a small medio-posterior region of the pyriform cortex (the angular cortex), which has a distinctly different appearance in Nissl stained sections, proves to be devoid of olfactory connections. Despite the fact that sub-areas can be recognized within olfactory cortex, there is an underlying constancy in design throughout. Latency measurements indicate that fine collateral branches of theLOT reach the posterior olfactory cortex, whereas mainly larger diameter (faster conducting) fibres comprise the contribution to anterior olfactory cortex. Thus in the present context it is sufficient to recognise just an anterior and posterior subdivisionof olfactory cortex, contingent on the above criterion and correlated with cytoarchitectural features, chiefly variations in cortical layers II and III of the regions concerned. Pyriform cortex directly in receipt of LOT fibres, and associated deeper cortical zones, generated potentials in the olfactory bulbs which can only be attributed to centrifugal input, thus further substantiating an olfactory role for this cortex. In addition, non-cortical regions in receipt of LOT f...Continue Reading

References

Mar 1, 1971·The Journal of Comparative Neurology·J W Scott, C M Leonard
Nov 1, 1972·Journal of Neurophysiology·W J Freeman
Oct 1, 1969·Brain Research·O E Millhouse
Oct 1, 1972·The Journal of Comparative Neurology·A Hjorth-Simonsen
Jun 15, 1970·Brain Research·D I KERR, B J Dennis
Jan 1, 1970·Acta Anatomica·M Girgis
Feb 1, 1966·The Journal of Comparative Neurology·F Scalia
Jul 1, 1955·Journal of Neurophysiology·D I KERR, K E HAGBARTH
Feb 1, 1959·The American Journal of Physiology·R R WALSH
Jan 1, 1963·International Review of Neurobiology·W J Freeman
Apr 1, 1965·Journal of Neurology, Neurosurgery, and Psychiatry·W M COWANT P POWELL
Feb 1, 1960·The Australian Journal of Experimental Biology and Medical Science·D I KERR
Jun 1, 1947·Brain : a Journal of Neurology·A BRODAL
Apr 1, 1946·The Journal of Comparative Neurology·W J S KRIEG

Citations

Jul 16, 1976·Brain Research·B J Dennis, D I KERR
Apr 14, 2009·Cerebral Cortex·Christopher D KroenkePhilip V Bayly
Oct 13, 1978·Brain Research·M NakashimaS F Takagi
Oct 27, 2012·The Journal of General Virology·Matthew R PerrottEdward A Hoover
Jul 6, 2000·The Journal of Comparative Neurology·H Künzle, S Radtke-Schuller

Related Concepts

Related Feeds

Basal Ganglia

Basal Ganglia are a group of subcortical nuclei in the brain associated with control of voluntary motor movements, procedural and habit learning, emotion, and cognition. Here is the latest research.

Amygdala: Sensory Processes

Amygdalae, nuclei clusters located in the temporal lobe of the brain, play a role in memory, emotional responses, and decision-making. Here is the latest research on sensory processes in the amygdala.