Fabre M, Buser P
Exp Brain Res. 1981;41(2):81-8. doi: 10.1007/BF00236597.
Seven cats were trained to press a lever that moved in front of them at an adjustable speed and at random from left to right or from right to left. Efficient presses were reinforced by food. After measuring accuracy and latency of pressing the lever, the animals underwent bilateral ablation of the suprasylvian (SS) cortex; in three animals the lesions involved its anterior aspect; in two animals, they were restricted to its middle portion; two other cats had lesions of both anterior and the middle SS cortex. No long-lasting postoperative deficits were observed in any group when the lever remained immobile. On the other hand, the scores after anterior SS lesions were severely deteriorated, when presses had to be performed on the moving lever. No such deficits were noticed when the ablations were restricted to the middle SS. These results suggest that the cat anterior suprasylvian cortex (that includes parts of areas 5 and 7) plays a determinant role in the spatial adjustment of a visually guided (or visually triggered) forelimb movement.
七只猫被训练按压一个杠杆，该杠杆在它们面前以可调节的速度随机地从左到右或从右到左移动。有效的按压会得到食物奖励。在测量了按压杠杆的准确性和潜伏期后，对这些动物进行了双侧上薛氏（SS）皮质切除术；三只动物的损伤涉及SS皮质的前部；两只动物的损伤局限于其中部；另外两只猫的SS皮质前部和中部都有损伤。当杠杆保持不动时，任何一组动物术后均未观察到长期缺陷。另一方面，当必须在移动的杠杆上进行按压时，SS皮质前部损伤后的得分严重恶化。当切除局限于SS皮质中部时，未发现此类缺陷。这些结果表明，猫的上薛氏皮质前部（包括5区和7区的部分区域）在视觉引导（或视觉触发）的前肢运动的空间调整中起决定性作用。
