图1 传导阻滞与折返效应的产生示例(a)传导阻滞，(b)折返效应(方框及框内的数字分别代表元胞及元胞的状态值。)

Fig.1 Examples of the emergence of (a) conduction block and (b) reentry (The square frames and the figures represent cells and their state values, respectively.)

图2 不考虑CVR, t=30 000时的螺旋波斑图，γ=2 (a)α=2 300, β=34；(b) α=1 400, β=40；(c)α=1 500, β=40； (d)α=2 600, β=36(斑图中白色、黑色和灰色分别代表元胞处于静息态、激发态和不应态，其中灰色越深代表不应态的状态值越小。)

Fig.2 Patterns of stable spiral waves without CVR at t=30 000 and γ=2 (a)α=2 300, β=34;(b)α=1 400, β=40; (c)α=1 500, β=40; (d)α=2 600, β=36(The white, dark and gray represent the state of rest, excited and refractory, respectively. Deeper gray indicates smaller value of refractory state.)

图3 考虑CVR后，螺旋波内凹与传导阻滞的关系(a)~(c)螺旋波演化过程中的时空斑图；(d)~(f)内凹区域的局部状态分布图；(g)~(i)非内凹区域的局部状态分布图(状态分布图中方框及数字的意义同图 1，斑图中的不同颜色意义同图 2，圆圈代表关注的元胞，箭头末端所在代表电信号到达地点，箭头始端所在代表电信号来源地点。参数见图 2(a)。)

Fig.3 The concave shape of spiral wave due to CVR and its relation with conduction block (a)~(c)spiral wave patterns; (d)~(f)local state distributions in concave region; (g)~(i)local state distributions in non-concave region (The square frames and figures in local state distributions are the same as in Fig. 1. Colors in patters represent the same as in Fig. 2. The cell with attention is signed with a circle. The end of arrow is at the point where electrical signal arrives, and beginning of the arrow is the source of electrical signal. Parameters are the same as in Fig. 2(a).)

图4 考虑CVR后，螺旋波呈菱形与传导阻滞的关系(a)~(c)菱形螺旋波形成过程中的时空斑图；(d)~(f)对角线方向的电信号被阻滞的局部状态分布(斑图中颜色以及状态分布图中符号所代表的意义同图 3。参数见图 2(b)。)

Fig.4 Rhombic shape of spiral wave due to CVR and its relation with conduction block (a)~(c)spiral wave patterns; (d)~(f) local state distributions reflecting conduction blocks along the diagonal direction (Colors in patterns and signals in state distributions represent the same as in Fig. 3. Parameters are the same as in Fig. 2(b).)

图5 考虑CVR后，螺旋波爱克豪斯失稳及其与传导阻滞和折返效应的关系(a)、(b)螺旋波爱克豪斯失稳过程中的时空斑图；(c)、(d)发生阻滞的局部状态分布；(e)、(f)发生折返的局部状态分布(斑图中颜色以及状态分布图中符号所代表的意义同图 3。参数见图 2(c)。)

Fig.5 Eckhaus instability due to CVR and its relation with conduction block and reentry (a) and (b) patterns during Eckhaus instability process; (c) and (d) local state distributions reflecting the conduction block; (e) and (f) local state distributions reflecting the reentry (Colors in patters and signals in state distributions represent the same as in Fig. 3. Parameters are the same as in Fig. 2(c).)

图6 考虑CVR后，螺旋波多普勒失稳及其与传导阻滞的关系(a)~(d)螺旋波失稳过程中的时空斑图；(e)~(h)发生传导阻滞的局部状态分布(斑图中颜色以及状态分布图中符号所代表的意义同图 3。参数见图 2(d)。)

Fig.6 Doppler instability due to CVR and its relation with conduction block (a)~(d)patterns during Doppler instability process; (e)~(h)local state distributions reflecting the conduction block (Colors in patter and signals in state distributions represent the same as in Fig. 3. Parameters are the same as in Fig. 2(d).)

图7 考虑CVR，不同参数下的螺旋波演化结果(〇代表螺旋波稳定，▽代表爱克豪斯失稳，△代表多普勒失稳。)

Fig.7 Evolution types of spiral waves under different parameters as CVR is considered (〇, ▽and △ represent stable spiral waves, Eckhaus instability and Doppler instability, respectively.)