Table 4. Overview of behavioural tasks affected by stroke damage.
Overview of behavioural tasks affected by stroke damage. Behavioural tests are designed to uncover damage inflicted by stroke to specific brain regions, but can also uncover damage to areas undergoing secondary damage due to, for instance, Wallerian degeneration. Anatomical areas in italics reflect sites of secondary damage, whereas other regions are directly affected by middle cerebral artery occlusion (MCAo). Degree of damage to these areas is, nevertheless, dependent on the duration and type of occlusion. Most of these tests can be used repeatedly and are fairly resistant to learning effects. A serial assessment on these tasks dramatically improves the statistical power to detect treatments effects. However, behavioural tasks with an asterix are difficult to adapt for serial measurement. For long-term assessments, it is also important to establish if a given behavioural test is resistant to spontaneous recovery. Often with time, brain plasticity and behavioural adaptations allow animals to perform at the level of controls. It is therefore crucial to include appropriate lesion-only controls that determine the persistence of a lesion effect. Sham-surgery controls are also needed for this.