Abstract
The visuo-spatial planning process is based on an “opportunistic” combination of heuristics and strategies, carried out in small units during the execution of plans. In order to investigate the functional role of the prefrontal cortex in heuristic switching, 42 healthy controls performed a labyrinth crossing task (the Maps Test). During this computerized version of the Travelling Salesperson Problem, subjects had to decide which order of locations optimizes total travel time and distance. This task was performed with and without 1 Hz repetitive transcranial magnetic stimulation (rTMS), which exerts an inhibitory action on the targeted area, applied during the task over bilateral frontal sites (active stimulation) and parieto-occipital site (sham stimulation). Only repetitive bilateral rTMS over F3 and F4 significantly decreased the number of strategies with changes of heuristics, and increased the number of movements required to solve the task. This behaviour contrasts with the performance of healthy subjects in the planning task, but is consistent with the performance of frontal traumatic brain injury patients. The results indicate that, in a visuo-spatial problem-solving task, the prefrontal cortex is involved in the switching between heuristics during the execution of a plan.
Similar content being viewed by others
References
Basso D (2005) Involvement of the prefrontal cortex in visuo-spatial planning. PhD Thesis, Department of Psychology, University of Rome “La Sapienza”. Available at URL: http://www.padis.uniroma1.it/getfile.py?recid=334
Basso D, Bisiacchi PS, Cotelli M, Farinello C (2001) Planning times during travelling salesman’s problem: differences between closed head injury and normal subjects. Brain Cogn 46:38–42
Bisiacchi PS, Basso D, Cimolino S, Talamazzi M (2002) Gender differences in an environmental simulation. IAPS Bull People Environ Studies 21:1–3
Boroojerdi B, Phipps M, Kopylev L, Wharton CM, Cohen LG, Grafman J (2001) Enhancing analogic reasoning with rTMS over the left prefrontal cortex. Neurology 56:526–528
Cadwallader M (1975) A behavioral model of consumer spatial decision making. Econ Geogr 51:339–349
Chen R, Gerloff C, Classen J, Wassermann EM, Hallett M, Cohen LG (1997) Safety of different inter-train intervals for repetitive transcranial magnetic stimulation and recommendations for safe ranges of stimulation parameters. Electroencephalogr Clin Neurophysiol 105:415–421
Cisek P (2005) Neural representations of motor plans, desired trajectories, and controlled objects. Cogn Process 6:15–24
Cohen G (1989) Memory in the real world. Erlbaum, Hillsdale
Dehaene S, Changeux JP (1992) The Wisconsin card sorting test: theoretical analysis and modeling in a neuronal network. Cereb Cortex 1:62–79
Fitzgerald PB, Brown TL, Daskalakis ZJ, Chen R, Kulkarni J (2002) Intensity-dependent effects of 1 Hz rTMS on human corticospinal excitability. Clin Neurophysiol 113:1136–1141
Graham SM, Joshi A, Pizlo Z (2000) The traveling salesman problem: A hierarchical model. Mem Cogn 28:1191–1204
Hayes-Roth B, Hayes-Roth F (1979) A cognitive model of planning. Cogn Sci 3:275–310
Hirtle S, Gärling T (1992) Heuristic rules for sequential spatial decisions. Geoforum 23:227–238
Karim AA, Kammer T, Lotze M, Hinterberger T, Godde B, Cohen L, Birbaumer N (2003). Effects of repetitive transcranial magnetic stimulation (rTMS) on slow cortical potentials (SCP). Suppl Clin Neurophysiol 56:331–337
Koechlin E, Ody C, Kouneiher F (2003) The architecture of cognitive control in the human prefrontal cortex. Science 302(5648):1181–1185
Leocani L, Cohen LG, Wassermann EM, Ikoma K, Hallett M (2000) Human corticospinal excitability evaluated with transcranial magnetic stimulation during different reaction time paradigms. Brain 123:1161–1173
MacGregor JN, Chronicle EP, Ormerod TC (2004). Convex-hull or crossing-avoidance? Solution heuristics in the traveling salesperson problem. Mem Cogn 32:260–270
McKeefry DJ, Watson JD, Frackowiak RS, Fong K, Zeki S (1997) The activity in human areas V1/V2, V3, and V5 during the perception of coherent and incoherent motion. Neuroimage 5(1):1–12
Miller EK, Cohen JD (2001) An integrative theory of prefrontal cortex function. Annu Rev Neurosci 24:167–202
Morris RG, Ahmed S, Syed GM, Toone BK (1993) Neural correlates of planning ability: frontal lobe activation during the Tower of London test. Neuropsychologia 31(12):1367–1378
Phillips LH, Wynn VE, McPherson S, Gilhooly KJ (2001) Mental planning and the Tower of London task. Q J Exp Psychol A 54:579–598
Rossi S, Pasqualetti P, Rossini PM, Feige B, Ulivelli M, Glocker FX, Battistini N, Lucking CH, Kristeva-Feige R (2000) Effects of repetitive transcranial magnetic stimulation on movement-related cortical activity in humans. Cereb Cortex 10(8):802–808
Rossini PM, Barker AT, Berardelli A, Caramia MD, Caruso G, Cracco RQ, Dimitrijevic MR, Hallett M, Katayama Y, Lucking CH, Maertens De Noodhout AL, Marsden CD, Murray NMF, Rothwell JC, Swash M, Tomberg C (1994) Non-invasive electrical and magnetic stimulation of the brain, spinal cord and roots: basic principles and procedures for routine clinical application. Report of an IFCN committee. Electroencephalogr Clin Neurophysiol 91:79–92
Shallice T (1988) From neuropsychology to mental structure. Cambridge University Press, Cambridge
Shallice T, Burgess P (1991) Deficits in strategy application following frontal lobe damage in man. Brain 114:727–741
Vandenberghe R, Price C, Wise R, Josephs O, Frackowiak RS (1996) Functional anatomy of a common semantic system for words and pictures. Nature 383(6597):254–256
Wasserman EM (1998) Risk and safety in repetitive transcranial magnetic stimulation. Electroenceph Clin Neurophysiol 108:1–16
Acknowledgements
The authors would like to thank Ralf Veit, Rita Fini, Angela Tagini, and three anonymous reviewers which have improved our work considerably. This work was partially supported by a Socrates–Erasmus Grant promoted by M.O.B.; D.B and P.S.B. are supported by the Italian PRIN2003; M.L. and N.B. are supported by the Deutsche Forschungsgemeinschaft (DFG).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Basso, D., Lotze, M., Vitale, L. et al. The role of prefrontal cortex in visuo-spatial planning: a repetitive TMS study. Exp Brain Res 171, 411–415 (2006). https://doi.org/10.1007/s00221-006-0457-z
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00221-006-0457-z