The effect of attention on conventional automated perimetry and luminance size threshold perimetry
The effect of attention on conventional automated perimetry and luminance size threshold perimetry
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DOI：
10.1167/iovs.03-0594
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发表时间：
2004-01-01
影响因子：
4.4
通讯作者：
Brito, CF
中科院分区：
文献类型：
--
作者：
Wall, M;Woodward, KR;Brito, CF
目的。探讨分散注意力对常规自动视距测量（CAP）和亮度大小阈值视距测量（LSTP）的影响。随机选取年龄在27 ~ 65岁的健康受试者10例，采用CAP和LSTP两种验光类型。在随后的测试中，这些测试以随机顺序进行，模拟焦虑或分心对进行视野测试的受试者的影响。首先对每个受试者进行心理负荷测试，即节奏性听觉序列加法测试（PASAT），并记录得分。在视野测试期间，再次连续使用PASAT。每位受试者被要求在进行视野测试时主要关注PASAT。CAP受到PASAT的影响，灵敏度从平均30.0 +/- 0.67 dB下降到24.2 +/- 7.4 dB，范围为-0.04至-23.2 dB （P = 0.04）。LSTP显示阈值普遍降低（1.71 +/- 0.22至2.35 +/- 0.72 dB），范围为0.12至- 2.17 dB （P = 0.25）。PASAT的正确率在CAP（76.9%）和LSTP（74.8%）之间没有显著差异。在PASAT检测CAP期间，假阳性和阴性捕获试验反应增加（P = 0.009）。PASAT联合CAP时固定损失显著增加（3.7-16.2,P = 0.002）。PASAT组LSTP的定位误差增加（P < 0.001），反应时间增加（P = 0.004）。在传统的自动视野检测中，当刺激大小固定时，注意力分散会显著影响检测结果。这些缺陷可能模拟神经纤维束样缺陷。
PURPOSE. To investigate the effects of divided attention on conventional automated perimetry (CAP) and luminance size threshold perimetry (LSTP).METHODS. Ten healthy subjects, ages 27 to 65, with two perimetry types (CAP and LSTP) were tested in random order. At a later session, these tests were given with a mental workload to simulate the effect of anxiety or distraction on subjects performing visual field testing, also in random order. The mental workload, the Paced Auditory Serial Addition Test (PASAT), was first administered to each subject, and the score was recorded. During the visual field testing, the PASAT was again administered continuously. Each subject was instructed to attend primarily to the PASAT while taking each visual field test.RESULTS. CAP was affected by the addition of the PASAT, with a worsening of sensitivity from an average of 30.0 +/- 0.67 to 24.2 +/- 7.4 dB with a range of -0.04 to -23.2 dB (P = 0.04). LSTP showed a generalized reduction in threshold 1.71 +/- 0.22 to 2.35 +/- 0.72 dB with a range of 0.12 to - 2.17 dB (P = 0.25). The percentage of correct responses on the PASAT was not significantly different between CAP (76.9%) and LSTP (74.8%). False-positive and -negative catch trial responses were increased during CAP with PASAT testing (P = 0.009). A substantial increase of fixation losses occurred during CAP with PASAT (3.7-16.2, P = 0.002). LSTP with PASAT showed increases in localization error (P < 0.001) and reaction time (P = 0.004).CONCLUSIONS. Divided attention significantly affects performance on conventional automated perimetry with its fixed size stimuli and when the stimuli are scaled (LSTP). The deficits may simulate nerve-fiber-bundle-like defects.