Cognitive and behavioural characteristics
| Abnormality | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|
| +, abnormality present; −, abnormality absent; ?, impossible to determine. | ||||||
| Attention | ||||||
| Variable responsiveness | + | + | + | + | + | + |
| Distracted by external environment | + | + | + | + | + | + |
| Language | ||||||
| Irrelevant content/intrusions | + | + | + | + | + | + |
| Verbal perseverations | + | + | + | + | + | + |
| Grammatical errors in speech | − | − | − | − | − | − |
| Semantic paraphasias | − | − | − | − | − | − |
| Phonemic paraphasias | − | + | + | − | − | − |
| Impaired lexical comprehension | − | − | − | − | − | − |
| Impaired syntactic comprehension | − | + | + | ? | − | − |
| Impaired object naming | − | + | + | − | − | − |
| Perception | ||||||
| Impaired recognition line drawings | Blind | ? | − | − | − | − |
| Impaired recognition famous faces | Blind | ? | ? | ? | − | − |
| Spatial skills | ||||||
| Impaired localisation | Blind | + | − | − | − | − |
| Praxis | ||||||
| Motor perseveration | + | + | + | + | + | + |
| Impaired limb gesture and pantomime | − | + | − | − | − | − |
| Impaired copy of hand postures | Blind | + | − | − | − | − |
| Memory | ||||||
| Disoriented in time and place | − | + | − | ? | ? | + |
| Impaired autobiographical events | − | − | − | ? | ? | + |
| Executive | ||||||
| Weigl's block sorting | Blind | + | + | ? | ? | + |
| Verbal fluency (animals/“F” words) | + | + | + | + | + | + |
| Behaviour | ||||||
| Fearfulness, perplexity | + | + | + | + | + | + |
| Impaired self reflection | − | − | − | + | − | − |
| Social disinhibition | − | − | − | − | − | − |