Colombo M, Broadbent N J, Taylor C S, Frost N
Department of Psychology, The Centre for Neuroscience, University of Otago, Dunedin, New Zealand.
Brain Res. 2001 Nov 23;919(2):292-301. doi: 10.1016/s0006-8993(01)03050-5.
We examined the effects of hippocampus (Hp) and area parahippocampalis (APH) lesions in pigeons on their ability to perform a battery of tasks including autoshaping, time discrimination, spatial memory, and pattern discrimination. Pigeons with Hp-APH lesions were impaired in the acquisition of an autoshaped response, emitting fewer pecks to the stimulus than control animals. Hp-APH pigeons were also impaired in the acquisition of a radial-arm maze analogue task, and those birds that did learn the task seemed to do so by adopting a stereotypic response strategy. In contrast, Hp-APH lesions had no effect on the ability of the birds to discriminate on the basis of either temporal or visual information. Overall, these studies complement our earlier studies and suggest that the avian hippocampus is important for the processing and retention of spatial rather than non-spatial information.
我们研究了鸽子海马体（Hp）和海马旁区域（APH）损伤对它们执行一系列任务能力的影响，这些任务包括自动成型、时间辨别、空间记忆和图案辨别。患有Hp - APH损伤的鸽子在自动成型反应的习得方面受损，与对照动物相比，对刺激的啄击次数更少。患有Hp - APH损伤的鸽子在获取放射状臂迷宫类似任务时也受损，那些确实学会该任务的鸟类似乎是通过采用刻板反应策略做到的。相比之下，Hp - APH损伤对鸟类基于时间或视觉信息进行辨别的能力没有影响。总体而言，这些研究补充了我们早期的研究，并表明鸟类海马体对于空间信息而非非空间信息的处理和保留很重要。
