Introduction

Gerstmann syndrome can occur as a developmental disorder or due to a brain injury. This syndrome results in the loss of four cognitive abilities, including the loss of being able to write (agraphia, dysgraphia), difficulty in solving arithmetic problems (acalculia), failure to recognise one’s fingers (finger agnosia), and finally, one may be unable to know the difference between the right and left side of their body.¹ Although this is a rare disease and not very common, it can happen to anyone at any time and will affect cognitive abilities that allow one to carry out daily tasks. 

Rehabilitation strategies

Occupational therapy

There has been a correlation between finger recognition and numerical ability. Therefore, there have been some finger identification exercises to improve finger gnosis, which has also led to improvements in mathematical skills in young children.² An experiment conducted by Butterworth in 1999 has proven the link between the improvement of finger identification exercises and number skills. Furthermore, left-right orientation training can also be done where the patient listens to directional commands to point to body parts using their contralateral hand.³

Speech-language therapy

Speech-language therapy is another way of managing symptoms of difficulty in writing, reading, and finger recognition. Aiding patients with writing exercises and helping them to recognise letters and words is a way of managing agraphia.⁴

Cognitive rehabilitation

Cognitive rehabilitation therapy is used to help patients to recover from brain injury. It may involve a physiotherapist training the patient to do simple exercises so that their brain can coordinate movements more effectively.⁵ Acalculia treatment consists of counting exercises and using number lines and calculators to stimulate the cognitive side of the brain. 

Visual-spatial therapy

Visual-spatial therapy involves testing one’s intelligence as this allows one to have a good sense of direction; for people with Gerstmann syndrome, it can be difficult to follow directions, and this therapy will allow them to work on this via problem-solving skills, puzzles, and orientation. Some exercises done to improve visual-spatial intelligence involve solving a Rubik’s cube, completing mazes, and reading maps.⁶

Technological aids in rehabilitation

Computer-based programs

Computer-based programs are designed for cognitive rehabilitation, which focuses on acalculia for arithmetic awareness.⁷ The program uses a touch screen to make it easier for people who lack computing literacy to use. The program contains exercises that allow people to improve their cognitive functions, and the treatment plan can be adjusted to the patient's needs over time.⁸

Mobile applications

Mobile devices can be used in therapy to stimulate finger recognition and directional orientation. Hand therapy evaluation and home practice exercises can be incorporated through mobile apps, and research has proven that technological devices have improved motor-visual perceptual skills, social participation, and handwriting skills.⁹

Prognosis and long-term outlook

Recovery potential

There is no cure for Gerstmann syndrome; however, ongoing treatment can be done to help patients manage their daily lives. Occupational and speech therapies are beneficial in improving finger recognition, acalculia, and agraphia.¹⁰ However, in adults, the symptoms may be gone over time, but they tend to adjust to their deficits. Therefore, it is clear that recovery potential is dependent on age, and some may need to deal with the symptoms for a lifelong period, while some may be able to recover over time. 

Conclusion

In conclusion, even though there is no cure for Gerstmann syndrome, there are many rehabilitation strategies patients can use to improve their condition. It is important that they consistently attend these therapy sessions, which will aid them in improving their cognitive and orientation skills.