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Dr Simon Farmer

Telephone:

Email:

Location:

  • National Hospital for Neurology and Neurosurgery

GMC/GDC number:

3141665

This consultant also offers private services through UCLH Private Healthcare.

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Professional background

Dr Simon Farmer is a consultant neurologist with particular expertise in general diagnostic neurology, movement disorders, neuro-ophthalmology and spinal disorders. He qualified from Bristol University in 1986: BSc-Pyschology 1st Class Honours, MbChBHe Completed a PhD in Physiology at UCL in 1990 as Welcome Trust Medical Research Training fellow.

He trained in General Medicine and Neurology at the Royal London Hospital, the National Hospital for Neurology & Neurosurgery and St Mary's Hospital, London (MRCP-1992, FRCP-2000). He was appointed consultant neurologist St Mary's Hospital and the National Hospital in 1995.

General neurology and acute liaison neurology: Between 1996 and 2010 at St Mary’s / Imperial College NHS Trust and the National Hospital for Neurology and Neurosurgery, Queen Square, Dr Farmer offered a consultant-lead general neurology service (two clinics per week; 14 neurology in-patient beds) and along with colleagues a 24/7 acute neurology liaison support service to one of London’s premier general teaching hospitals (St Mary’s, Paddington). This work included diagnosis and management of the entire range of undifferentiated acute neurological illness, e.g. Stroke, Myasthenia, Guillan-Barre, Status Epilepticus, CNS infection. Since his move to a full-time NHS post at the National Hospital, Queen Square in 2010, in addition to his sub-specialist interests Dr Farmer continues to offer an outpatient and inpatient general neurology service.

Movement disorders and Parkinson’s disease: Dr Farmer ran the St Mary's Hospital Movement Disorder service from 1996-2010 and he continues this work at the National Hospital for Neurology and Neurosurgery in London. He is a consultant within the movement disorder service at the National Hospital and specialises in the diagnosis and treatment of Parkinson’s disease, tremor, dystonia, myoclonus, ataxia and functional movement disorders. He works with the functional neurosurgery team at the National Hospital and is principal investigator within the Institute of Neurology’s Sobell Department of Motor Neuroscience and Movement Disorders

Neuro-ophthalmology: Dr Farmer co-ran with first Mr James Acheson and subsequently with Mrs Veronica Ferguson a weekly neuro-ophthalmology clinic at the Western Eye Hospital, London from 1998-2010. Acute neuro-ophthalmology problems e.g. severe optic neuritis, pituitary apoplexy, CNS vasculitis/Behcets and disorders of eye movements were admitted under his care to St Mary’s Hospital, London. Dr Farmer has expertise in the diagnosis and management of all aspects of neuro-ophthalmology and since May 2010 has continued his NHS neuro-ophthalmology work at the National Hospital, London. He continues to enjoy close working relationships with his previous as well as current consultant ophthalmologist and consultant neuro-ophthalmologist colleagues.

Medical management of spinal cord and spinal column disorders: Dr Farmer receives a number of referrals for second opinions from spinal orthopaedic and spinal neurosurgeon colleagues to his practices. He has written and edited significant sections in two major neurology text books in this area and has lectured on the ‘Imperial Spine Course’. His expertise in this field is in helping to guide decisions relating to surgical versus medical management of spinal cord and spinal column disorders.

Research and public engagement: Dr Farmer is active in basic and clinic neuroscience research at the Institute of Neurology and enjoys active collaborations with colleagues with other universities in the UK and abroad. He is the supervisor and mentor of a number of PhD students. He has been board member and trustee of the Bobath Foundation. He is involved with lecturing and running seminars in neurology and neuroscience for trainees and general practitioners. He has advised and taken part in the making of several television programmes relating to his research.

Specialties

Research interests

His research interest is in the field on signal analysis of brain and muscle activity. Over a number of years he has studied synchronous and oscillatory drive to the motoneuron pool in humans through application of coherence and cross-correlation analysis. His group was the first to describe ~20 Hz synchronous drive to human motoneurons and provided the first demonstration of ~20 Hz coherence between brain and muscle recordings. His team's research has been applied to the clinical conditions of Parkinson's disease, tremor, dystonia, myoclonus, stroke, cerebral palsy, and pathological mirror movements.

Research projects include:

  1. Dynamical systems approach to normal and abnormal human motor development.
  2. The development of human oscillatory brain-muscle interactions.
  3. Human motor development 
  4. The pulsatile control of human movement.
  5. Neurophysiological studies of mirror movements.
  6. Plasticity in the human motor system following stroke. 
  7. Analysis and modelling of the pre-term EEG.
  8. Modelling of brain oscillator networks.
  9. Cortical network behaviour in low awareness states. 
  10. Frontal lobe network interactions in reward tasks.

Publications

Publication list

2013

  • Rossiter, H. E., Eaves, C., Davies, E., Boudrias, M., Park, C., Farmer, S., . . . Ward, N. (2013.). Changes in the location of Cortico-muscular Coherence following Stroke. Neuroimage.
  • Botcharova, M., Farmer, S. F., & Berthouze, L. (2013). A maximum likelihood based technique for validating detrended fluctuation analysis (ML-DFA).
  • Petersen, T. H., Farmer, S. F., Kliim-Due, M., & Nielsen, J. B. (2013). Failure of normal development of central drive to ankle dorsiflexors relates to gait deficits in children with cerebral palsy. J Neurophysiol, 109 (3), 625-639. doi:10.1152/jn.00218.2012
  • Ward, N. J., Farmer, S. F., Berthouze, L., & Halliday, D. M. (2013). Rectification of EMG improves detection of motor unit coherence in the beta frequency band. J Neurophysiol. doi:10.1152/jn.00296.2013

2012

  • Botcharova, M., Farmer, S. F., & Berthouze, L. (2012). A power-law distribution of phase-locking intervals does not imply critical interaction. Phys. Rev. E, 86, 051920-?. doi:10.1103/PhysRevE.86.051920
  • Berthouze, L., & Farmer, S. F. (2012). Adaptive time-varying detrended fluctuation analysis. J Neurosci Methods, 209 (1), 178-188. doi:10.1016/j.jneumeth.2012.05.030
  • Hartley, C., Berthouze, L., Mathieson, S. R., Boylan, G. B., Rennie, J. M., Marlow, N., & Farmer, S. F. (2012). Long-range temporal correlations in the EEG bursts of human preterm babies. PLoS One, 7 (2), e31543-?. doi:10.1371/journal.pone.0031543
  • Kachramanoglou, C., Farmer, S. F., & Choi, D. (2012). Sequestered disc fragment mimicking a psoas abscess. Spine Journal.

2011

  • Deutsch, K. M., Stephens, J. A., & Farmer, S. F. (2011). Developmental profile of slow hand movement oscillation coupling in humans. J Neurophysiol, 105 (5), 2204-2212. doi:10.1152/jn.00695.2010
  • Farmer, S. (2011). Dynamic coordination in the brain: From neurons to mind. JOURNAL OF PSYCHOPHYSIOLOGY, 25 (4), 201-202. doi:10.1027/0269-8803/a000055
  • St Noble, V., Davagnanam, I., & Farmer, S. (2011). PICTURE QUIZ Intractable headache after lumbar puncture. BRIT MED J, 343. doi:10.1136/bmj.d4529
  • Murase, N., Farmer, S. F., Rothwell, J. C., & Bhatia, K. (2011). Unilateral-dominant activation of the primary motor cortex on the side of well-developed contralateral corticospinal tract in congenital mirror movement without other neurological abnormalities. MOVEMENT DISORDERS, 26, S40.

2010

  • Petersen, T. H., Kliim-Due, M., Farmer, S. F., & Nielsen, J. B. (2010). Childhood development of common drive to a human leg muscle during ankle dorsiflexion and gait. J Physiol, 588 (Pt 22), 4387-4400. doi:10.1113/jphysiol.2010.195735
  • Berthouze, L., James, L. M., & Farmer, S. F. (2010). Human EEG shows long-range temporal correlations of oscillation amplitude in Theta, Alpha and Beta bands across a wide age range. Clin Neurophysiol, 121 (8), 1187-1197. doi:10.1016/j.clinph.2010.02.163
  • Rajakulendran, S., Kuntzer, T., Dunand, M., Yau, S. C., Ashton, E. J., Storey, H., . . . Hanna, M. G. (2010). Marked hemiatrophy in carriers of Duchenne muscular dystrophy. Arch Neurol, 67 (4), 497-500. doi:10.1001/archneurol.2010.58
  • Halliday, D. M., & Farmer, S. F. (2010). On the need for rectification of surface EMG. J Neurophysiol, 103 (6), 3547-?. doi:10.1152/jn.00222.2010

2009

  • Mayston, M. J., Farmer, S. F., & Hopkins, C. (2009). Changes in upper limb reaching synergies with human ageing.
  • Farmer, S. F., Stephens, J. A., & Deutsch, K. M. (2009). Developmental changes and functional role of 6-12 Hz oscillatory modulation of human slow hand movements. Proc Physiol Soc, 14, C19-?.
  • Deutsch, K. M., Farmer, S. F., & Stephens, J. A. (2009). Developmental changes in the pulsatile control of slow hand movements. J Sport Exercise Psy, 31, S30-S31.
  • Farmer, S. F., James, L. M., Stephens, J. A., & Halliday, D. M. (2009). Frequency domain analysis of abnormal cortical drive in individuals with congenital mirror movements. Proc Physiol Soc, 14, PC6-?.
  • Farmer, S., Casey, A., Choi, D., Howard, R., & Raisman, G. (2009). Spinal cord disorders. In C. Clarke, R. Howard, M. Rossor, S. Shorvon (Eds.), Neurology: a Queen Square textbook (pp. 585-628). Chichester: Wiley-Blackwell.

2008

  • Tofaris, G. K., & Farmer, S. F. (2008). Focal paraneoplastic syndrome associated with small cell carcinoma of the lung. Journal of Neurology, 255 (1), 123-124. doi:10.1007/s00415-008-0550-2
  • James, L. M., Halliday, D. M., Stephens, J. A., & Farmer, S. F. (2008). On the development of human corticospinal oscillations: age-related changes in EEG-EMG coherence and cumulant. European Journal of Neuroscience, 27 (12), 3369-3379. doi:10.1111/j.1460-9568.2008.06277.x

2007

  • Farmer, S. F., Gibbs, J., Halliday, D. M., Harrison, L. M., James, L. M., Mayston, M. J., & Stephens, J. A. (2007). Changes in EMG coherence between long and short thumb abductor muscles during human development. The Journal of Physiology, 579 (2), 389-402. doi:10.1113/jphysiol.2006.123174

2005

  • Farmer, S. F. (2005). Mirror movements in neurology. Journal of Neurology, Neurosurgery and Psychiatry, 76 (10), 1330.Mayston, M. J., Barron, L., Harrison, L. M., Alexander, C. M., & Farmer, S. F. (2005). Use of dynamic lycra orthoses to maximise hand function in people recovering from stroke. The Stroke Association 10th Scientific Conference Proceedings, poster 12.

2004

  • Farmer, S. F., Harrison, L. M., Mayston, M. J., Parekh, A., James, L. M., & Stephens, J. A. (2004). Abnormal cortex-muscle interactions in subjects with X-linked Kallmann's syndrome and mirror movements. Brain, 127 (2), 385-397. doi:10.1093/brain/awh047
  • Chataway, J., Davies, N. W. S., Farmer, S., Howard, R. S., Thompson, E. J., & Ward, K. N. (2004). Herpes simplex encephalitis: an audit of the use of laboratory diagnostic tests. QJM, 97 (6), 325-330. doi:10.1093/qjmed/hch058
  • Farmer, S. F. (2004). Sexual wellbeing in Parkinson's disease. Journal of Neurology, Neurosurgery and Psychiatry, 75 (9), 1232.

2003

  • Farmer, S. F., James, L., Parekh, A., Harrison, L. M., Mayston, M. J., & Stephens, J. A. (2003). Abnormal oscillatory drive to motor neurons in Kallman's syndrome. JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY, 74 (3), 410. BRITISH MED JOURNAL PUBL GROUP.

2002

  • Farmer, S. F., & Carr, L. J. (2002). Diseases of the vertebral column. In A. K. Asbury, G. M. McKhann, W. I. McDonald, P. J. Goadsby, J. C. McArthur (Eds.), Diseases of the nervous system: clinical neuroscience and therapeutic principles (pp. 727-741). Cambridge: Cambridge University Press.
  • Farmer, S. (2002). Neural rhythms in Parkinson's disease. BRAIN, 125, 1175-1176.

2001

  • Farmer, S. F., Harrison, L. M., Stephens, J. A., & Mayston, M. J. (2001). Abnormal cortex-muscle coherence in subjects with mirror movements. Society for Neuroscience Abstracts, 27, 304.9-?.
  • Hickman, S. J., Ward, N. S., Surtees, R. A. H., Stevens, J. M., & Farmer, S. F. (2001). How broad is the phenotype of Hallervorden-Spatz disease?. Acta Neurologica Scandinavica, 103 (3), 201-203.
  • Larner, A. J., Williamson, C., Ward, N. S., Acheson, J. F., Robinson, S., & Farmer, S. F. (2001). Isolated familial hypomagnesaemia with novel neurological features: causal link or chance concurrence?. EUR J NEUROL, 8 (5), 495-499.
  • Mayston, M. J., Harrison, L. M., Stephens, J. A., & Farmer, S. F. (2001). Physiological tremor in human subjects with X-linked Kallmann's syndrome and mirror movements. The Journal of Physiology, 530 (3), 551-563. doi:10.1111/j.1469-7793.2001.0551k.x

2000

  • Halliday, D. M., Conway, B. A., Farmer, S. F., Shahani, U., Russell, A. J., & Rosenberg, J. R. (2000). Coherence between low-frequency activation of the motor cortex and tremor in patients with essential tremor. Lancet, 355 (9210), 1149-1153.
  • Larner, A. J., & Farmer, S. F. (2000). Myelopathy following influenza vaccination in inflammatory CNS disorder treated with chronic immunosuppression. Eur J Neurol, 7 (6), 731-733.
  • Sharrack, B., Hughes, R. A. C., Morris, R. W., Soudain, S., Wade-Jones, O., Barnes, D., . . . Frankel, J. P. (2000). The effect of oral and intravenous methylprednisolone treatment on subsequent relapse rate in multiple sclerosis. Journal of the Neurological Sciences, 173 (1), 73-77.

1999

  • Brown, P., Farmer, S. F., Halliday, D. M., Marsden, J., & Rosenberg, J. R. (1999). Coherent cortical and muscle discharge in cortical myoclonus. Brain, 122, 461-472.
  • McAuley, J. H., Farmer, S. F., Rothwell, J. C., & Marsden, C. D. (1999). Common 3 and 10 Hz oscillations modulate human eye and finger movements while they simultaneously track a visual target. The Journal of Physiology, 515, 905-917.
  • Halliday, D. M., Conway, B. A., Farmer, S. F., & Rosenberg, J. R. (1999). Load-independent contributions from motor-unit synchronization to human physiological tremor. J Neurophysiol, 82 (2), 664-675.
  • Farmer, S. F. (1999). Pulsatile central nervous control of human movement. J Physiol, 517 ( Pt 1), 3-?.Larner, A. J., & Farmer, S. F. (1999). Recent Advances. Neurology. BMJ, 319 (7206), 362-366.
  • Larner, A. J., & Farmer, S. F. (1999). Recent advances: neurology (vol 319, pg 362, 1999). BRIT MED J, 319 (7217), 1130.
  • Mayston, M. J., Harrison, L. M., Stephens, J. A., & Farmer, S. F. (1999). Shared physiological tremor in patients with mirror movements. Journal of Physiology, 515, 155-?.
  • Munro, N. A. R., Bronstein, A. M., Larner, A. J., Janssen, J. C., & Farmer, S. F. (1999). The role of the nucleus intercalatus in vertical gaze holding (multiple letters) [6]. Journal of Neurology Neurosurgery and Psychiatry, 66 (4), 552-553.
  • Bronstein, A. M., Larner, A. J., Janssen, J. C., & Farmer, S. F. (1999). The role of the nucleus intercalatus in vertical gaze holding - Reply. J NEUROL NEUROSUR PS, 66 (4), 552-553.
  • Marsden, J. F., Farmer, S. F., Halliday, D. M., Rosenberg, J. R., & Brown, P. (1999). The unilateral and bilateral control of motor unit pairs in the first dorsal interosseous and paraspinal muscles in man. The Journal of Physiology, 521, 553-564.

1998

  • Larner, A. J., Smith, S. C., & Farmer, S. F. (1998). "Non-neuroleptic malignant" syndrome. J Neurol Neurosurg Psychiatry, 65 (4), 613-?.
  • Farmer, S. F., Sheean, G. L., Mayston, M. J., Rothwell, J. C., Marsden, C. D., Conway, B. A., . . . Stephens, J. A. (1998). Abnormal motor unit synchronization of antagonist muscles underlies pathological co-contraction in upper limb dystonia. Brain, 121, 801-814.
  • Brown, P., Farmer, S. F., Halliday, D. M., & Rosenberg, J. R. (1998). Coherent cortical and muscle discharge in patients with cortical myoclonus. J PHYSIOL-LONDON, 509P, 176P.
  • Halliday, D. M., Conway, B. A., Farmer, S. F., Rosenberg, J. R., McLelland, D., & Vourekas, G. (1998). Correlation between EEG and motor output during voluntary contractions in man. J PHYSIOL-LONDON, 506P, 82
  • P.Bentley, C. R., Bronstein, A. M., Faldon, M., Farmer, S., Gresty, M. A., Matthews, T. D., . . . Riordan-Eva, P. (1998). Fast torsional eye movement initiation of ocular torsion in meso-diencephalic lesions. Annals of Neurology, 43, 729-737.
  • Conway, B. A., Halliday, D. M., Bray, K., Cameron, M., McLelland, D., Mulcahy, E., . . . Rosenberg, J. R. (1998). Inter-muscle coherence during co-contraction of finger and wrist muscles in man. J PHYSIOL-LONDON, 509P, 175P-176P.
  • Farmer, S. F. (1998). Rhythmicity, synchronization and binding in human and primate motor systems. J Physiol, 509 ( Pt 1), 3-14.
  • Larner, A. J., Bronstein, A. M., & Farmer, S. F. (1998). Role of the nucleus intercalatus in upbeat nystagmus. Ann Neurol, 44 (5), 840-?. doi:10.1002/ana.410440523
  • Janssen, J. C., Larner, A. J., Morris, H., Bronstein, A. M., & Farmer, S. F. (1998). Upbeat nystagmus: clinicoanatomical correlation. J Neurol Neurosurg Psychiatry, 65 (3), 380-381.
  • Halliday, D. M., Conway, B. A., Farmer, S. F., & Rosenberg, J. R. (1998). Using electroencephalography to study functional coupling between cortical activity and electromyograms during voluntary contractions in humans. Neurosci Lett, 241 (1), 5-8.

1997

  • Farmer, S. F., Halliday, D. M., Conway, B. A., Stephens, J. A., & Rosenberg, J. R. (1997). A review of recent applications of cross-correlation methodologies to human motor unit recording. Journal of Neuroscience Methods, 74, 175-187.
  • Halliday, D. M., Conway, B. A., Shahani, U., Russell, A., Farmer, S. F., Weir, A. I., & Rosenberg, J. R. (1997). Coherence estimates between cortical activity and motor output in subjects with essential tremor. J PHYSIOL-LONDON, 501P, P38.
  • Barnes, D., Hughes, R. A. C., Morris, R. W., Wade-Jones, O., Brown, P., Britton, T., . . . Frankel, J. (1997). Randomised trial of oral and intravenous methylprednisolone in acute relapses of multiple sclerosis. The Lancet, 349 (9056), 902-906. doi:10.1016/S0140-6736(96)06453-7
  • Conway, B. A., Biswas, P., Halliday, D. M., Farmer, S. F., & Rosenberg, J. R. (1997). Task-dependent changes in rhythmic motor output during voluntary elbow movement in man. J PHYSIOL-LONDON, 501P, P48-P49.

1996

  • Caldwell, C. J., Barrett, W. Y., Breuer, J., Farmer, S. F., & Swash, M. (1996). HTLV-1 polymyositis. Neuromuscul Disord, 6 (3), 151-154.Farmer, S. F. (1996). Profile of a neurology residency in the United Kingdom. Arch Neurol, 53 (8), 714-?.

1995

  • HALLIDAY, D. M., AMJAD, A. M., CONWAY, B. A., FARMER, S. F., & ROSENBERG, J. R. (1995). A METHOD FOR COMPARISON OF SEVERAL COHERENCE ESTIMATES FROM INDEPENDENT EXPERIMENTS. J PHYSIOL-LONDON, 487P, P76-P77.
  • Halliday, D. M., Rosenberg, J. R., Amjad, A. M., Breeze, P., Conway, B. A., & Farmer, S. F. (1995). A framework for the analysis of mixed time series/point process data--theory and application to the study of physiological tremor, single motor unit discharges and electromyograms. Prog Biophys Mol Biol, 64 (2-3), 237-278.
  • CONWAY, B. A., HALLIDAY, D. M., SHAHANI, U., MAAS, P., WEIR, A. I., ROSENBERG, J. R., & FARMER, S. F. (1995). COMMON FREQUENCY COMPONENTS IDENTIFIED FROM CORRELATIONS BETWEEN MAGNETIC RECORDINGS OF CORTICAL ACTIVITY AND THE ELECTROMYOGRAM IN MAN. J PHYSIOL-LONDON, 483P, P35.
  • Conway, B. A., Farmer, S. F., Halliday, D. M., & Rosenberg, J. R. (1995). On the relation between motor-unit discharge and physiological tremor. ALPHA AND GAMMA MOTOR SYSTEMS, 596-598. PLENUM PRESS DIV PLENUM PUBLISHING CORP.
  • Conway, B. A., Halliday, D. M., Farmer, S. F., Shahani, U., Maas, P., Weir, A. I., & Rosenberg, J. R. (1995). Synchronization between motor cortex and spinal motoneuronal pool during the performance of a maintained motor task in man. J Physiol, 489 ( Pt 3), 917-924.

1994

  • AMJAD, A. M., CONWAY, B. A., FARMER, S. F., HALLIDAY, D. M., & ROSENBERG, J. R. (1994). 3RD-ORDER HYBRID CUMULANT DENSITY ANALYSIS OF THE CONTRIBUTION OF CORRELATED MOTOR-UNIT DISCHARGES TO PHYSIOLOGICAL TREMOR. J PHYSIOL-LONDON, 476P, P3-P4.
  • AMJAD, A. M., CONWAY, B. A., FARMER, S. F., OLEARY, C., HALLIDAY, D. M., & ROSENBERG, J. R. (1994). A LOAD-INDEPENDENT 30-40 HZ COMPONENT OF PHYSIOLOGICAL TREMOR IN MAN. J PHYSIOL-LONDON, 476P, P21.
  • CONWAY, B. A., FARMER, S. F., HALLIDAY, D. M., & ROSENBERG, J. R. (1994). HIGHER-ORDER ANALYSIS OF THE CONTRIBUTION FROM CORRELATED MOTOR-UNIT DISCHARGES TO PHYSIOLOGICAL TREMOR. J PHYSIOL-LONDON, 479P, P30-P31.

1993

  • Farmer, S. F., Swash, M., Ingram, D. A., & Stephens, J. A. (1993). Changes in motor unit synchronization following central nervous lesions in man. J Physiol, 463, 83-105.
  • Farmer, S. F., Bremner, F. D., Halliday, D. M., Rosenberg, J. R., & Stephens, J. A. (1993). The frequency content of common synaptic inputs to motoneurones studied during voluntary isometric contraction in man. J Physiol, 470, 127-155.

1992

  • BREMNER, F. D., BAKER, J. R., HARRISON, L. M., CARR, L., FARMER, S. F., & STEPHENS, J. A. (1992). ACTIVITY IN BRANCHES OF LAST ORDER COMMON STEM PRESYNAPTIC INPUT FIBERS TO MOTONEURON POOLS - A MECHANISM FOR MUSCLE SYNERGY. MUSCLE AFFERENTS AND SPINAL CONTROL OF MOVEMENT, 187-194. PERGAMON PRESS LTD.
  • CARR, L. J., HARRISON, L. M., STEPHENS, J. A., LOTAY, I., FARMER, S., IRONTON, R., & JONES, T. (1992). EVIDENCE FOR BILATERAL INNERVATION OF HOMOLOGOUS MOTONEURON POOLS IN MAN. J PHYSIOL-LONDON, 446, P567.

1991

  • Datta, A. K., Farmer, S. F., & Stephens, J. A. (1991). Central nervous pathways underlying synchronization of human motor unit firing studied during voluntary contractions. J Physiol, 432, 401-425.
  • Farmer, S. F., Harrison, L. M., Ingram, D. A., & Stephens, J. A. (1991). Plasticity of central motor pathways in children with hemiplegic cerebral palsy. Neurology, 41 (9), 1505-1510.

1990

  • FARMER, C., FARMER, S. F., HALLIDAY, D. M., ROSENBERG, J. R., & STEPHENS, J. A. (1990). COHERENCE ANALYSIS OF MOTOR UNIT FIRING RECORDED DURING VOLUNTARY CONTRACTION IN MAN. J PHYSIOL-LONDON, 420, P22.
  • FARMER, S. F., INGRAM, D. A., & STEPHENS, J. A. (1990). CUTANEOMUSCULAR REFLEX RESPONSES RECORDED FROM 1ST DORSAL INTEROSSEOUS MUSCLE IN A PATIENT WITH MIRROR MOVEMENTS. J PHYSIOL-LONDON, 422, P15.
  • FARMER, S. F., BREMNER, F. D., & STEPHENS, J. A. (1990). EVIDENCE FOR A CENTRAL NERVOUS ORIGIN OF MOTOR UNIT COHERENCE IN MAN. J PHYSIOL-LONDON, 430, P55.
  • FARMER, S. F., HARRISON, L. M., INGRAM, D. A., & STEPHENS, J. A. (1990). EVIDENCE FOR PLASTICITY OF CENTRAL MOTOR PATHWAYS IN CHILDREN WITH HEMIPLEGIC CEREBRAL-PALSY. J PHYSIOL-LONDON, 429, P40.
  • FARMER, S. F., INGRAM, D. A., & MATTHEWS, P. B. C. (1990). EVIDENCE FOR THE TRANSCORTICAL TRANSMISSION OF LONG-LATENCY STRETCH REFLEXES OBTAINED IN A PATIENT WITH MIRROR MOVEMENTS. J PHYSIOL-LONDON, 425, P82.
  • Farmer, S. F., Ingram, D. A., & Stephens, J. A. (1990). Mirror movements studied in a patient with Klippel-Feil syndrome. J Physiol, 428, 467-484.Matthews, P. B., Farmer, S. F., & Ingram, D. A. (1990). On the localization of the stretch reflex of intrinsic hand muscles in a patient with mirror movements. J Physiol, 428, 561-577.
  • FARMER, S. F., BREMNER, F. D., HALLIDAY, D. A., ROSENBERG, J. R., & STEPHENS, J. A. (1990). THE RELATIONSHIP BETWEEN TIME AND FREQUENCY-DOMAIN ANALYSIS OF MOTOR UNIT FIRING STUDIED IN MAN. J PHYSIOL-LONDON, 425, P84.
  • VENNING, S., ENGERT, D., EVANS, H., FARMER, S. F., & STEPHENS, J. A. (1990). TIME AND FREQUENCY-DOMAIN ANALYSIS OF MOTOR UNIT FIRING IN 1ST DORSAL INTEROSSEOUS MUSCLE AND BICEPS STUDIED IN MAN. J PHYSIOL-LONDON, 429, P41.

1989

  • BREMNER, F. D., FARMER, C., FARMER, S. F., INGRAM, D. A., STEPHENS, J. A., & SWASH, M. (1989). CHANGES IN THE TIME COURSE OF MOTOR UNIT SYNCHRONIZATION FOLLOWING UPPER MOTONEURON LESIONS IN MAN SUGGEST AN INCREASE IN MOTONEURON EPSP AMPLITUDES. J PHYSIOL-LONDON, 417, P103.
  • FARMER, S. F., INGRAM, D. A., ROCHE, S. W., & STEPHENS, J. A. (1989). EVIDENCE THAT MIRROR MOVEMENTS IN THE KLIPPEL-FEIL SYNDROME IN MAN ARE PRODUCED BY ACTIVITY IN BRANCHED-STEM PRESYNAPTIC INPUTS FROM CORTICOSPINAL NEURONS. J PHYSIOL-LONDON, 418, P102.

1984

  • McCallum, W. C., Farmer, S. F., & Pocock, P. V. (1984). The effects of physical and semantic incongruities on auditory event-related potentials. Electroencephalogr Clin Neurophysiol, 59 (6), 477-488.