Anjan Chatterjee Figure 1.4 Example of a drawing copied by a patient with left neglect. tion of gaze can modulate extinction (Vaishnavi. Calhoun.Chatteriee.1999). be licldb Extinction may h Thompso s placed in their ha 1998 Figure 1.3 of a spontaneous drawing by a patient with left tion may neglect. ple sional Stacy.1990 presented to both visual fields compared with single visual fields.Auditory extinction can be assessed by asking them to report which ear hears a noise made General Theories of Neglect by snapped fingers or two coins rubbed together at one or both ears.Tactile extinction can be assessed General theories emphasize behaviors common by lightly touching patients either unilaterally or bilaterally and asking them to report where they oduces the were touched.Patients'eyes should be closed when These theories include attentional and tactile extinction is being assessed since their direc- tional theories presented to both visual fields compared with single visual fields. Auditory extinction can be assessed by asking them to report which ear hears a noise made by snapped fingers or two coins rubbed together at one or both ears. Tactile extinction can be assessed by lightly touching patients either unilaterally or bilaterally and asking them to report where they were touched. Patients’ eyes should be closed when tactile extinction is being assessed since their direc￾tion of gaze can modulate extinction (Vaishnavi, Calhoun, & Chatterjee, 1999). Extinction may even be elicited by having patients judge relative weights placed in their hands simultaneously (Chatterjee & Thompson, 1998). Patients with extinction may dramatically under￾estimate left-sided weights when a weight is also placed on their right hand. Finally, extinction may also be observed with multiple stimuli in ipsile￾sional space (Feinberg, Haber, & Stacy, 1990; Rapcsak, Watson, & Heilman, 1987). General Theories of Neglect General theories emphasize behaviors common to patients with neglect and try to isolate the core deficit, which produces the clinical syndrome. These theories include attentional and representa￾tional theories. Anjan Chatterjee 4 Figure 1.3 Example of a spontaneous drawing by a patient with left neglect. Figure 1.4 Example of a drawing copied by a patient with left neglect