Figure 3

Relationship between PPI and cell activity. (a) Temporal changes in neuronal activity at the triangular dots shown in Fig. 2b (\({\mathrm{w}}_{\text{iLNa}}=1.25,{\mathrm{w}}_{\text{iLNb}}=1.75\)), where the startle response is not suppressed by a prepulse. Left: Without a prepulse; Right: With a prepulse. The vertical dashed black line indicates the time of the pulse input. The thin arrow head pointing to the horizontal axis indicates the prepulse timing, and the thick arrow head indicates the pulse timing. The red and blue colours indicate the onset and offset times, respectively. The colours in the band below each graph indicate the behaviour at the corresponding time. Green: n.r., red: hunch, blue: bend. (b) The behavioural landscape of behaviours in the \({\mathrm{w}}_{\text{iLNb}}- {\mathrm{w}}_{\text{iLNa}}\) space. Each colour indicates how the behaviour changed with and without a prepulse input. Black: no change. Red: hunch to n.r. Blue: hunch-bend sequence to bend. Red: hunch to bend. Yellow: hunch to hunch-bend sequence. Grey: n.r. to bend. Cyan: bend to hunch-bend sequence. (c) Persistence of each neuronal activity induced by a prepulse at the time of a pulse input as a \({\mathrm{w}}_{\text{iLNb}}- {\mathrm{w}}_{\text{iLNa}}\) spatial distribution. Each line indicates the boundary of behavioural changes due to PPI in (b). Orange colour indicates greater persistence of activity.