Troy A. Hackett, Ph.D.

Associate Professor

troy.a.hackett@vanderbilt.edu
Faculty Appointments
Associate Professor of Hearing and Speech Sciences Associate Professor of Psychology
Education
Ph.D., Hearing & Speech Sciences , Vanderbilt University, Nashville, TennesseeM.A., Indiana University, Bloomington, IndianaB.A., Indiana University, Bloomington, Indiana
Office Address
301 David K Wilson Hall
111 21st Avenue South
Nashville, TN 37203
Research Description
Dr. Hackett studies the organization of the auditory cortex combining anatomical and neurophysiological techniques. The major emphasis of the research is to assemble a model of auditory cortical processing from: 1) identification of the cortical areas involved in the processing of auditory information; 2) reconstruction of the circuitry that underlies the auditory cortical network; 3) recording of neurophysiological response profiles for neurons in individual areas; and 4) comparative analyses of these features between species. The long term goal of this research is to establish a comprehensive model of auditory processing in the human cerebral cortex. Research is supported by the National Institutes of Health (NIDCD).
Research Keywords
Anatomy and physiology of auditory cortex
Publications
Hackett TA, De La Mothe LA, Ulbert I, Karmos G, Smiley J, Schroeder CE. Multisensory convergence in auditory cortex, II. Thalamocortical connections of the caudal superior temporal plane. J. Comp. Neurol. 2007 Jun 6/20/2007; 502(6): 924-52. PMID: 17444488, DOI: 10.1002/cne.21326, ISSN: 0021-9967.

de la Mothe LA, Blumell S, Kajikawa Y, Hackett TA. Thalamic connections of the auditory cortex in marmoset monkeys: core and medial belt regions. J. Comp. Neurol. 2006 May 5/1/2006; 496(1): 72-96. PMID: 16528728, PMCID: PMC4419740, DOI: 10.1002/cne.20924, ISSN: 0021-9967.

de la Mothe LA, Blumell S, Kajikawa Y, Hackett TA. Cortical connections of the auditory cortex in marmoset monkeys: core and medial belt regions. J. Comp. Neurol. 2006 May 5/1/2006; 496(1): 27-71. PMID: 16528722, DOI: 10.1002/cne.20923, ISSN: 0021-9967.

Kajikawa Y, Hackett TA. Entropy analysis of neuronal spike train synchrony. J. Neurosci. Methods [print-electronic]. 2005 Nov 11/30/2005; 149(1): 90-3. PMID: 16026849, PII: S0165-0270(05)00143-3, DOI: 10.1016/j.jneumeth.2005.05.011, ISSN: 0165-0270.

Hackett TA, Karmos G, Schroeder CE, Ulbert I, Sterbing-D'Angelo SJ, D'Angelo WR, Kajikawa Y, Blumell S, de la Mothe L. Neurosurgical access to cortical areas in the lateral fissure of primates. J. Neurosci. Methods. 2005 Jan 1/30/2005; 141(1): 103-13. PMID: 15585294, PII: S0165027004002158, DOI: 10.1016/j.jneumeth.2004.06.001, ISSN: 0165-0270.

Kajikawa Y, de La Mothe L, Blumell S, Hackett TA. A comparison of neuron response properties in areas A1 and CM of the marmoset monkey auditory cortex: tones and broadband noise. J. Neurophysiol [print-electronic]. 2005 Jan; 93(1): 22-34. PMID: 15342713, PII: 00248.2004, DOI: 10.1152/jn.00248.2004, ISSN: 0022-3077.

Hackett TA, Preuss TM, Kaas JH. Architectonic identification of the core region in auditory cortex of macaques, chimpanzees, and humans. J. Comp. Neurol. 2001 Dec 12/17/2001; 441(3): 197-222. PMID: 11745645, PII: 10.1002/cne.1407, ISSN: 0021-9967.

Florence SL, Boydston LA, Hackett TA, Lachoff HT, Strata F, Niblock MM. Sensory enrichment after peripheral nerve injury restores cortical, not thalamic, receptive field organization. Eur. J. Neurosci. 2001 May; 13(9): 1755-66. PMID: 11359527, PII: ejn1555, ISSN: 0953-816X.

Kaas JH, Hackett TA. Subdivisions of auditory cortex and processing streams in primates. Proc. Natl. Acad. Sci. U.S.A. 2000 Oct 10/24/2000; 97(22): 11793-9. PMID: 11050211, PMCID: PMC34351, PII: 97/22/11793, DOI: 10.1073/pnas.97.22.11793, ISSN: 0027-8424.

Kaas JH, Hackett TA. How the visual projection map instructs the auditory computational map. J. Comp. Neurol. 2000 May 5/29/2000; 421(2): 143-5. PMID: 10813777, PII: 10.1002/(SICI)1096-9861(20000529)421:2<143::AID-CNE1>3.0.CO;2-H, ISSN: 0021-9967.

Florence SL, Hackett TA, Strata F. Thalamic and cortical contributions to neural plasticity after limb amputation. J. Neurophysiol. 2000 May; 83(5): 3154-9. PMID: 10805710, ISSN: 0022-3077.

Kaas JH, Hackett TA, Tramo MJ. Auditory processing in primate cerebral cortex. Curr. Opin. Neurobiol. 1999 Apr; 9(2): 164-70. PMID: 10322185, PII: S0959-4388(99)80022-1, ISSN: 0959-4388.

Hackett TA, Stepniewska I, Kaas JH. Callosal connections of the parabelt auditory cortex in macaque monkeys. Eur. J. Neurosci. 1999 Mar; 11(3): 856-66. PMID: 10103079, ISSN: 0953-816X.

Hackett TA, Stepniewska I, Kaas JH. Prefrontal connections of the parabelt auditory cortex in macaque monkeys. Brain Res. 1999 Jan 1/30/1999; 817(1-2): 45-58. PMID: 9889315, PII: S0006-8993(98)01182-2, ISSN: 0006-8993.

Hackett TA, Stepniewska I, Kaas JH. Thalamocortical connections of the parabelt auditory cortex in macaque monkeys. J. Comp. Neurol. 1998 Oct 10/19/1998; 400(2): 271-86. PMID: 9766404, PII: 10.1002/(SICI)1096-9861(19981019)400:2<271::AID-CNE8>3.0.CO;2-6, ISSN: 0021-9967.

Hackett TA, Stepniewska I, Kaas JH. Subdivisions of auditory cortex and ipsilateral cortical connections of the parabelt auditory cortex in macaque monkeys. J. Comp. Neurol. 1998 May 5/18/1998; 394(4): 475-95. PMID: 9590556, PII: 10.1002/(SICI)1096-9861(19980518)394:4<475::AID-CNE6>3.0.CO;2-Z, ISSN: 0021-9967.

Kaas JH, Hackett TA. Subdivisions of auditory cortex and levels of processing in primates. Audiol. Neurootol. 1998 Mar; 3(2-3): 73-85. PMID: 9575378, PII: aud03073, ISSN: 1420-3030.