PMID- 3770116
OWN - NLM
STAT- MEDLINE
DCOM- 19861216
LR  - 20200304
IS  - 0014-4819 (Print)
IS  - 0014-4819 (Linking)
VI  - 64
IP  - 1
DP  - 1986
TI  - Differences of visual field representation in the medial and lateral banks of the 
      suprasylvian cortex (PMLS/PLLS) of the cat.
PG  - 77-93
AB  - We have studied the orderliness of representation of visual space in the medial 
      and lateral banks of the middle suprasylvian sulcus. Penetrations were made 
      either parallel to the sulcus, in one bank or the other, or vertical, thus 
      crossing the sulcus between the postero-medial (PMLS) and posterolateral (PLLS) 
      divisions of this area. In some cases we found clear evidence for topographical 
      order in the representation of the visual field with a tendency (greater in PMLS 
      than in PLLS) for the receptive fields of cells recorded deeper in the walls of 
      the sulcus to lie closer to the area centralis, but along many penetrations the 
      receptive fields were so large and so scattered that no retinotopic arrangement 
      could be discerned. In PMLS the receptive fields of the majority of units we 
      studied were centered below and close to the horizontal meridian, whereas in PLLS 
      they were distributed over both the upper and lower visual fields with an 
      over-representation of the upper field. Receptive fields were significantly 
      larger in PLLS (mean field area = 442.2 deg2) than in PMLS (mean area = 154.4 
      deg2); there was also less clear correlation between receptive field size and 
      eccentricity in PLLS (correlation coefficient = +0.25) than in PMLS (corr. coeff. 
      = +0.72). Analysis of the distance between the receptive field centres of 
      consecutively recorded units demonstrated that the mean scatter in both PMLS and 
      PLLS amounts to about half the average receptive field diameter. In summary the 
      topographical representation of visual space is less orderly in PLLS, and may 
      involve a wider area of the visual field. These findings may relate to the 
      segregated visual cortical and extrageniculate thalamic connections that the 
      medial and lateral banks of the LS receive.
FAU - Zumbroich, T J
AU  - Zumbroich TJ
FAU - von Grunau, M
AU  - von Grunau M
FAU - Poulin, C
AU  - Poulin C
FAU - Blakemore, C
AU  - Blakemore C
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - Germany
TA  - Exp Brain Res
JT  - Experimental brain research
JID - 0043312
SB  - IM
MH  - Animals
MH  - Brain Mapping
MH  - Cats
MH  - Cerebral Cortex/*physiology
MH  - Female
MH  - Male
MH  - Retina/physiology
MH  - Visual Fields
MH  - Visual Pathways/*physiology
MH  - Visual Perception/*physiology
EDAT- 1986/01/01 00:00
MHDA- 1986/01/01 00:01
CRDT- 1986/01/01 00:00
PHST- 1986/01/01 00:00 [pubmed]
PHST- 1986/01/01 00:01 [medline]
PHST- 1986/01/01 00:00 [entrez]
AID - 10.1007/BF00238203 [doi]
PST - ppublish
SO  - Exp Brain Res. 1986;64(1):77-93. doi: 10.1007/BF00238203.