martes, 8 de enero de 2008

Trabajos en congresos internacionales / Meetings

  1. Cervantes, M., Torre, L y Valdez, P. (1977, julio). Influencia de las hormonas gonadales sobre la conducta de relajación en la gata. XIII Congreso Latinoamericano y XX Congreso Nacional de Ciencias Fisiológicas, pag. 127. México, D.F.
  2. Valdez, P., Pérez, J.C. y Roa, M.L. (1981, junio). Variaciones circadianas y ultradianas de diversos patrones de conducta en la rata. XVIII Congreso Interamericano de Psicología. Santo Domingo, República Dominicana.
  3. Pérez, J.C., Galarza, J., Ramírez, A. y Valdez, P. (1984, septiembre). Variaciones circadianas y ultradianas en la ingestión de agua. XXIII Congreso Internacional de Psicología, II, pag. 120. Acapulco, Gro., México.
  4. Galarza, J., Becerra, M., Ramírez, A., Téllez, H., Alvarez, M.A., Pérez, J.C. y Valdez, P. (1985, marzo). Principios circadianos aplicados a las alteraciones derivadas del trabajo nocturno o rotatorio. I Congreso Interamericano de Psicología del Trabajo. Oaxaca, Oax., México.
  5. Ramírez, A., Téllez, H., Galarza, J., Becerra, M., Alvarez, M.A., Perez, J.A. y Valdez, P. (1985, julio). Presentación contingente de agua y organización circadiana de la conducta. XX Congreso Interamericano de Psicología, pag. 348. Caracas, Venezuela.
  6. Jiménez, N.T., Alvarez, M.A., Ramírez, M.C., Becerra, M. y Valdez, P. (1987, junio). Efectos del plomo sobre el ritmo circadiano de ingestión de agua. Resúmenes de las Comunicaciones del XXI Congreso Interamericano de Psicología. Habana, Cuba.
  7. Nevárez, C., Ramírez, C. y Valdez, P. (1991, febrero). Effects of daylight saving time elimination on a never exposed population. I Simposio Latinoamericano de Cronobiología, III Simposio Brasileiro de Cronobiología. Sao Paulo, Brasil.
  8. Valdez, P. (1991, mayo). La rehabilitación neuropsicológica del paciente afásico. I Encuentro Internacional de Psicología. Monterrey, N.L., México.
  9. Valdez, P. (1991, mayo). Parasomnios: diagnóstico y tratamiento. I Encuentro Internacional de Psicología. Monterrey, N.L., México.
  10. Nevárez, C., Ramírez, C. y Valdez, P. (1991, julio). Efectos psicofisiológicos del horario de verano en una población nunca antes expuesta. XXIII Congreso Interamericano de Psicología. San José, Costa Rica.
  11. Vizuet, C., López, J. y Valdez, P. (1993, julio). Figuras y palabras. Una prueba neuropsicológica para medir el aprendizaje y la memoria. XXIV Congreso Interamericano de Psicología. Santiago, Chile.
  12. Valdez, P. y Ramírez, C. (1993, julio). Changes in sleep- wake cycle during different days of week in day shift workers. XXI Conference of the International Society for Chronobiology. Quebec City, Canadá.
  13. Sánchez, L., Guerrero, N., Navarro, C. y Valdez, P. (1995, julio). Alteraciones neuropsicológicas en adolescentes con antecedentes de inhalación voluntaria de solventes orgánicos. XXV Congreso Interamericano de Psicología. San Juan, Puerto Rico.
  14. Valdez, P., Ramírez, C. y García, A. (1995, septiembre). Delaying and extending sleep during weekends: sleep recovery or circadian effect? World Conference on Chronobiology and Chronotherapeutics. Ferrara, Italia.
  15. Valdez, P., Ramírez, C., García, A. y García, E. (1997, septiembre). Adjustment of sleep to daylight saving time during weekdays and weekends. International Congress on Chronobiology. París, Francia.
  16. García, A., Ramírez, C., Padilla, J., García, E., Fernández, E. y Valdez, P. (1999, agosto). How do persons interpret a morningness-eveningness questionnaire? International Congress on Chronobiology. Washington, D.C.
  17. Valdez, P. (2001, mayo). Conferencia. Adjustment of the sleep-wake cycle to short changes in schedule. VI Latin American Symposium on Chronobiology. Natal, Brasil.
  18. Valdez, P. (2003, noviembre). Conferencia. Circadian rhythms in attention. VII Latin American Symposium on Chronobiology. Tlaxcala, Tlaxcala, México.
  19. Talamantes, J., Armijo, P., Borrani, J., García, A., Ramírez, C. y Valdez P. (2003, noviembre). Circadian rhythms in attentional components. VII Latin American Symposium on Chronobiology. Tlaxcala, Tlaxcala, México.
  20. Ramírez, C., Talamantes, J., García, A., Morales M., P. Valdez P. y Menna-Barreto, L. (2003, noviembre). Circadian rhythms in short-term memory tasks. VII Latin American Symposium on Chronobiology. Tlaxcala, Tlaxcala, México.
  21. García, A., Fernández, E., Zambrano, N., Ramírez, C. y Valdez P. (2003, noviembre). Adjustment of the activity cycle to daylight saving time. VII Latin American Symposium on Chronobiology. Tlaxcala, Tlaxcala, México.
  22. García, A., Ramírez, C., Armijo, P., (2003, noviembre). Sleep-wake cycle and lifestyle changes during weekends in morning and afternoon shift workers. VII Latin American Symposium on Chronobiology. Tlaxcala, Tlaxcala, México.
  23. Valdez, P. (2004, enero). Conferencia. Circadian variations in components of attention. 1st International Symposium on Circadian Rhythms, Sleep, and Cognition. Toronto, Ontario, Canada.
  24. Ramírez, C., Talamantes, J., García, A., Morales, M., Valdez P. y Menna-Barreto, L. (2005, octubre). Circadian rhythms in phonological and visuospatial storage components of working memory. VIII Latin American Symposium of Chronobiology, Los Cocos, Córdoba, Argentina.
  25. Talamantes, J., Ramírez, C., García, A. y Valdez, P. (2005, octubre). Circadian variations in different types of errors in cognitive performance. VIII Latin American Symposium of Chronobiology, Los Cocos, Córdoba, Argentina.
  26. Figueredo, A. J., Frías Armenta, M., Valdez P., Nava, G., Borrani, J., Contreras, M., Vega, B., and Ríps, D. (2005, diciembre). Executive function and juvenile delinquency: Preliminary data. Sixth Annual Conference of the International Society for Intelligence Research. Albuquerque, NM, U.S.A.
  27. Ramírez, C., Talamantes, J., García, A., Morales, M., Valdez P. y Menna-Barreto, L. (2006, mayo). Circadian rhythms in phonological and visuospatial storage components of working memory. Tenth Meeting of the Society for Research on Biological Rhythms. Sandestin, Florida, U.S.A.
  28. Nava, G., Arreola, R., Salas, B., González, E. y Valdez, P. (2006, julio). Treatment of a child with hemineglect. INS/VNP/GNP International Neuropsychological Society, Swiss Neuropsychological Association and German Neuropsychological Society Meeting: From plasticity to rehabilitation. Zurich, Suiza.
  29. Nava, G. y Valdez, P. (2006, octubre). Effects of hemineglect in learning of words and numbers in an eight year old boy. 2nd Meeting of the European Societies of Neuropsychology. Toulouse, France.
  30. Valdez, P. (2007, mayo). Conferencia. Circadian rhythms in cognitive performance. Basic and applied topics in biological rhythms and learning. Second International School on Mind, Brain and Education. Ettore Majorana Center for Scientific Culture. Erice, Italia.
  31. Valdez, P., Hernández, T., Tirado, H., García, A. y Ramírez, C. (2007, julio). Developmental changes in performance of a Stroop task. International Neuropsychological Society, Federation of Spanish Societies of Neuropsychology, Spanish Neuropsychological Society and Spanish Psychiatry Society Joint Mid-Year Meeting. Bilbao, España.
  32. Valdez, P. Chairez, D. y Nava, G. (2007, julio). Effects of atomoxetine in a patient recovering from brain ischemia. 4th Symposium on Neuropsychological Rehabilitation. San Sebastián, Donostia, España.
  33. Juárez, D., Escalante, R., Ramírez, C., García, A. y Valdez, P. (2007, noviembre). Effects of 24 h sleep deprivation on cognitive performance. IX Latin American Symposium of Chronobiology. Habana,Cuba.
  34. Cortez, J., García, A., Ramírez, C. y Valdez, P. (2007, noviembre). Effects of a 30-minutes advance in school schedule on cognitive performance in children. IX Latin American Symposium of Chronobiology. Habana,Cuba.
  35. Talamantes, J., García, A., Ramírez, C. y Valdez, P. (2007, noviembre). Circadian variations in sustained attention. IX Latin American Symposium of Chronobiology. Habana,Cuba.
  36. García, A. (2007, noviembre). Circadian rhythms in executive functions. IX Latin American Symposium of Chronobiology. Habana,Cuba.
  37. Ramírez, C., García, A., Talamantes, J. y Valdez, P. (2008, mayo). Circadian rhythms in behavioral inhibition and flexibility. Eleventh Meeting of the Society for Research on Biological Rhythms. Sandestin, Florida, U.S.A.
  38. Valdez, P., Ramírez, C., García, A., Talamantes, J. y Cortez, J. (2009, Mayo). Circadian and homeostatic variations In sustained attention. The Third International Congress of Applied Chronobiology and Chronomedicine (ICACC). Akko, Israel.
  39. Ramírez, C., Juárez, D., Cortez, J., Talamantes, J., García, A. y Valdez, P. (2009, Mayo). Effects of sleep deprivation during the week on the components of attention. The Third International Congress of Applied Chronobiology and Chronomedicine (ICACC). Akko, Israel.
  40. Valdez, P. (2009, junio). Conferencia. Circadian variations in sustained attention. X Latin American Symposium on Chronobiology. Natal, Brasil.
  41. Angel, J., Martínez, B., Juárez, D., Cortez, J., Talamantes, J., García, A., Ramírez, C. y Valdez, P. (2009, octubre). Effects of 24-h sleep deprivation on phonological and visuospatial components of working memory. X Latin American Symposium on Chronobiology, Natal, Brasil.
  42. Cortez, J., Juárez, D., Talamantes, J., García, A., Ramírez, C. y Valdez, P. (2009, octubre). Effects of sleep reduction during the week in sustained attention. X Latin American Symposium on Chronobiology. Natal, Brasil.
  43. Cortez, J. y Valdez, P. (2009, octubre). Effects of advance and delay sleep schedules in attention. X Latin American Symposium on Chronobiology. Natal, Brasil.
  44. García, A., Juárez, D., Cortez, J., Talamantes, J., Ramírez, C. y Valdez, P. (2009, octubre). Circadian rhythms in human self-monitoring. X Latin American Symposium on Chronobiology. Natal, Brasil.
  45. Juárez, D., Arroyo, L., Flores, A., Cortez, J., Talamantes, J., García, A., Ramírez, C. y Valdez, P. (2009, octubre). Effects of 24-h sleep deprivation on sustained attention. X Latin American Symposium on Chronobiology. Natal, Brasil.
  46. Talamantes, J., García, A., Ramírez, C. y Valdez, P. (2009, octubre). Circadian variations in a response to an alarm as a concurrent task. X Latin American Symposium on Chronobiology. Natal, Brasil.
  47. Borrani, J., Hernández, T., Alejos. N., Ortiz, X., Frías, M. y Valdez, P. (2010, febrero). Behavioral Inhibition and Cognitive Flexibility in Juvenile Delinquents. International Neuropsychological Society, 38th Annual Meeting. Acapulco, Guerrero, México.
  48. García, A., Juárez, D., Arroyo, L., Reyna, M., Ortiz, X., Ramírez, C. y Valdez, P. (2010, febrero). Design of a map task to assess prevision. International Neuropsychological Society, 38th Annual Meeting. Acapulco, Guerrero, México.
  49. García, A., Martínez, B., Talamantes, J., Ramírez, C. y Valdez, P. (2010, febrero). Analysis of Behavioral Inhibition and Flexibility on a Shifting Criteria Task. International Neuropsychological Society, 38th Annual Meeting. Acapulco, Guerrero, México.
  50. Ortiz, X., Hernández, T., García, A., Flores, A., Ramírez, C. y Valdez, P. (2010, febrero). Changes on Behavioral Inhibition in Elderly People. International Neuropsychological Society, 38th Annual Meeting. Acapulco, Guerrero, México.
  51. Talamantes, J., Cortez, J., García, A., Ramírez, C. y Valdez, P. (2010, febrero). Analysis of indices of sustained attention on a continuous performance task. International Neuropsychological Society, 38th Annual Meeting. Acapulco, Guerrero, México.
  52. García, A., Juárez, D., Cortez, J., Talamantes, J, Ramírez, C. y Valdez, P. (2010, julio). Circadian rhythms in the capacity to adjust behavior to changes in the environment. 26th Conference of the International society of Chronobiology. Vigo, España.
  53. Ramírez, C., García, A., Talamantes, J., Cortez, J., Juárez, D. y Valdez, P. (2010, julio). Circadian rhythms in selective attention. 26th Conference of the International society of Chronobiology. Vigo, España.
  54. Valdez, P., García, A., Martínez, B., Talamantes, J. y Ramírez, C. (2010, julio). Circadian rhythms in two components of executive functions: inhibition and flexibility. 26th Conference of the International society of Chronobiology. Vigo, España.
  55. Valdez, P., Juárez, D., Ramírez, C. y García, A. (2010, septiembre). Effects of 24-h sleep deprivation on the components of attention. 20th Congress of the European Sleep Research Society. Lisboa, Portugal.
  56. Ramírez, C., Juárez, D., Arroyo, L., Flores, A., Cortez, J., Talamantes, J., García, A. y Valdez, P. (2010, septiembre). Effects of 24-h sleep deprivation on the indices of sustained attention. 20th Congress of the European Sleep Research Society. Lisboa, Portugal.
  57. Cortez, J. y Valdez, P. (2011, mayo). Effects of a 15 minutes nap on the components of attention. XI Latin American Symposium of Chronobiology. Cholula, Puebla, Pue., México.
  58. Cortez, J., Juárez, D., García, A., Ramírez, C. y Valdez, P. (2011, mayo). Effects of 24-h sleep deprivation on attention. XI Latin American Symposium of Chronobiology y III World Congress of Chronobiology. Puebla, Pue., México.
  59. Cortez, J., Juárez, D., Borrani, J., García, A., Ramírez, C. y Valdez, P. (2011, mayo). Effects of a 30-minutes advance in school schedule on sustained attention in children. XI Latin American Symposium of Chronobiology y III World Congress of Chronobiology. Puebla, Pue., México.
  60. Del Angel, J., Iracheta, G., Juárez, D., Cortez, J., García, A., Ramírez, C. y Valdez, P. (2011, mayo). Effects of sleep deprivation on working memory. XI Latin American Symposium of Chronobiology y III World Congress of Chronobiology. Puebla, Pue., México.
  61. Flores, A., Talamantes, J., Ortiz, X., García, A., Ramírez, C. y Valdez, P. (2011, mayo). Sleep-wake cycle and activity-rest cycle in elderly people. XI Latin American Symposium of Chronobiology y III World Congress of Chronobiology. Puebla, Pue., México.
  62. Juárez, D., Guerrero, M., Arroyo, L., Cortez, J., García, A., Ramírez, C. y Valdez, P. (2011, mayo). Effects of sleep reduction on the components of attention. XI Latin American Symposium of Chronobiology y III World Congress of Chronobiology. Puebla, Pue., México.
  63. Juárez, D. y Valdez, P. (2011, mayo). Effects of advance and delay of the sleep phase on the components of attention. XI Latin American Symposium of Chronobiology. Puebla, Pue., México.
  64. Martínez, B., García, A., Talamantes, J., Ramírez, C. y Valdez, P. (2011, mayo). Circadian variations in cognitive inhibition and flexibility. XI Latin American Symposium of Chronobiology y III World Congress of Chronobiology. Puebla, Pue., México.
  65. Reyna M. y Valdez, P. (2011, mayo). Effects of coffee ingestion on the components of attention after a 24 h sleep deprivation. XI Latin American Symposium of Chronobiology. Puebla, Pue., México.
  66. Silva, A., Louzada, F., Valdez, P. y Azevedo, C. (2011, mayo). Characterization of social factors associated with diurnal sleepiness in kindergarten children. XI Latin American Symposium of Chronobiology. Puebla, Pue., México.
  67. Talamantes, J., García, A., Ramírez, C. y Valdez, P.. (2011, mayo). Circadian variations in alertness. XI Latin American Symposium of Chronobiology y III World Congress of Chronobiology. Puebla, Pue., México.
  68. Valdez, P. (2011, mayo). Conferencia. Effects of sleep deprivation on cognitive performance at different times of day. XI Latin American Symposium of Chronobiology. Puebla, Pue., México.
  69. Valdez P (2011, diciembre). Video-conferencia. La formación del científico en México. Jornada México 2011 - IPEALT. Materiales para un nuevo siglo: Homenaje a Tomás Segovia. Institut Pluridisciplinaire pour les Études sur l'Amérique Latine à Toulouse (IPEALT), Université de Toulouse II – Le Mirail. Toulouse, France. 
  70. Guerrero M, García A, Ramírez C, Cortez J, Valdez P (2012, febrero). Analysis of the components of attention on simultaneous performance of two tasks. 40th Annual Meeting of the International Neuropsychological Society. Montréal, Québec, Canada. 
  71. Borrani J, Frias M, Ortiz X, Alejos N, Valdez P (2012, febrero). Cognitive flexibility in juvenile delinquents. 40th Annual Meeting of the International Neuropsychological Society. Montréal, Québec, Canada
  72. Arroyo L, Juárez D, García A, Ramírez C, Valdez P (2012, Junio). Disorders of Prevision in a Traumatic Brain Injury Patient: a Case Study. International Neuropsychological Society Mid-Year Meeting 2012. Oslo, Noruega.
  73. Belísio A, Hernández S, Medellín B, Azevedo C, Louzada F, Ramírez C, García A, Valdez P. (2012, Junio). Analysis of the components of attention in children from 4 to 6 years old. International Neuropsychological Society Mid-Year Meeting 2012. Oslo, Noruega.
  74. Borrani J, Frias M, Ortiz X, Alejos N, Cervantes M, Valdez P (2012, Junio). Analysis of the components of attention in juvenile delinquents. International Neuropsychological Society Mid-Year Meeting 2012. Oslo, Noruega.
  75. Guerrero M, García A, Ramírez C, Cortez J, Valdez P (2012, Junio). Effects of the simultaneous performance of two tasks on the components of attention of each task. International Neuropsychological Society Mid-Year Meeting 2012. Oslo, Noruega.
  76. Ortiz X, García A, Ramírez C, Guerrero M, Valdez P (2012, Junio). Cognitive inhibition and flexibility in children and adolescents. International Neuropsychological Society Mid-Year Meeting 2012. Oslo, Noruega.
  77. García A, Ramírez C, Valdez P (2012, octubre). Circadian rhythms in one component of executive functions: self-monitoring. International Congress of Chronobiology. New Delhi, India.
  78. Ramírez C, Talamantes J, García A, Valdez P (2012, octubre). Circadian variations in three levels of tonic alertness. International Congress of Chronobiology. New Delhi, India.
  79. Valdez P, Cortez J, García A, Ramírez C (2012, octubre). Changes in the sleep-wake cycle during weekdays and weekends in undergraduate students. International Congress of Chronobiology. New Delhi, India.
  80. Arroyo L, Gándara I, De la Cruz A, García A, Ramírez C, Valdez P (2013, Julio). Changes in prevision from preadolescence to adolescence. Neuropsychological Society Mid-year Meeting 2013. Amsterdam, Holanda.
  81. Borrani J, Frías M, García A, Cervantes M, Martínez V, Valdez P (2013, Julio). ADHD symptoms and components of attention in juvenile delinquents. Neuropsychological Society Mid-year Meeting 2013. Amsterdam, Holanda.
  82. Del Ángel J, Juárez D, Cortez J, García A, Ramírez C, Valdez P (2013, Julio). Effects of 24-h sleep deprivation on the components of working memory. Neuropsychological Society Mid-year Meeting 2013. Amsterdam, Holanda.
  83. García F, Ortiz X, García A, Valdez P (2013, Julio). Analysis of the components of attention in elderly people. Neuropsychological Society Mid-year Meeting 2013. Amsterdam, Holanda.
  84. Guerrero M, Saldaña B, Alejo E, Cortez J, Juárez D, García A, Valdez P (2013, Julio). Effects of simultaneous performance of two tasks on the indices of sustained attention. International Neuropsychological Society Mid-year Meeting 2013. Amsterdam, Holanda.
  85. Valdez P. (2013, octubre). Conferencia. Circadian rhythms in cognitive performance. Round table II: Human Circadian Rhythms. XII Latin American Symposium on Chronobiology, Mendoza, Argentina.
  86. Valdez P (2013, octubre). Conferencia. Sleep-wake cycle during non-working days. Symposium IV: Human rhythms and clocks. The sleep-wake cycle as a circadian output. XII Latin American Symposium on Chronobiology, Mendoza, Argentina.
  87. Arroyo L, Ramírez C, García A, Valdez P (2013, octubre). Prevision does not show circadian rhythms. XII Latin American Symposium on Chronobiology, Mendoza, Argentina.
  88. Belísio A, Chagas M, Kolodiuk F, Borges G, Louzada F, Valdez P, Azevedo C (2013, octubre). Influence of the school schedule on the sleep/wake cycle of kindergarten children. XII Latin American Symposium on Chronobiology, Mendoza, Argentina.
  89. Delgadillo I, Ramírez C, García A, Valdez P (2013, octubre). Sleep-wake cycle before, during and after a vacation period. XII Latin American Symposium on Chronobiology, Mendoza, Argentina.
  90. García F, Borrani J, Ortiz X, , García A, Valdez P (2013, octubre). Changes on the sleep-wake cycle in elderly people. XII Latin American Symposium on Chronobiology, Mendoza, Argentina.
  91. Lozano L, García A, Ramírez C, Guerrero M, Ramírez C, Valdez P (2013, octubre). Simultaneous performance of two tasks at different times of day. XII Latin American Symposium on Chronobiology, Mendoza, Argentina.
  92. Magallán E, Saldaña B, García A, Ramírez C, Del Ángel J, Valdez P (2013, octubre). Circadian rhythm in phonological working memory using an auditory n-back. XII Latin American Symposium on Chronobiology, Mendoza, Argentina.
  93. Ramírez C, García A, Valdez P (2013, octubre). Sleep-wake cycle and chronotype in people from the morning shift and afternoon shift. XII Latin American Symposium on Chronobiology, Mendoza, Argentina.
  94. Ramírez D, García A, Ramírez C, Valdez P (2013, octubre). Random number generation at different times of day. XII Latin American Symposium on Chronobiology, Mendoza, Argentina.
  95. Valdez I, García A, Ramírez C, Valdez P (2013, octubre). Circadian rhythms on the adjustment to changes of a tracking task. XII Latin American Symposium on Chronobiology, Mendoza, Argentina.
  96. Valdez P (2014, febrero). Conferencia. Efectos del jet lag y los cambios de horario sobre el ciclo de vigilia-sueño. III Encontro Abordando o Sono, Natal, Brasil.
  97. Valdez P (2014, febrero). Conferencia. Cronobiología del comportamiento humano. Aula inaugural do ano letivo 2014 do Programa de Pos-graduação em Psicobiologia da Universidade Federal do Rio Grande do Norte, Natal, Brasil.
  98. Valdez P (2014, febrero). Curso. Efectos de la privación de sueño y los ritmos circadianos sobre la atención. Programa de Pos-graduação em Psicobiologia da Universidade Federal do Rio Grande do Norte, Natal, Brasil.
  99. Valdez P (2014, febrero). Conferencia. Human sleep as a biological rhythm. Programa de Pos-graduação em Fisiologia e Biologia Molecular da Universidade Federal do Paraná, Natal, Brasil.
  100. Valdez P (2014, febrero). Conferencia. Circadian rhythms in cognitive performance. Laboratorio de Cronobiología Humana da Universidade Federal do Paraná, Natal, Brasil.
  101. García A, Ramírez C, Guerrero M, Valdez P (2014, junio). Circadian rhythms in executive functions assessed by a simultaneous performance of two tasks. 28th International Conference of Chronobiology (ISC 2014). Bucarest, Rumania.
  102. García A, Ramírez D, Ramírez C, Valdez P (2014, junio). Performance on a random number generation task does not show circadian rhythms. 28th International Conference of Chronobiology (ISC 2014). Bucarest, Rumania.
  103. Valdez P, Delgadillo I, Ramírez C, García A (2014, junio). Changes of the sleep-wake cycle during a vacation period. 28th International Conference of Chronobiology (ISC 2014). Bucarest, Rumania.
  104. Ramírez C, García A, Valdez P (2014, junio). Chronotype and sleep-wake cycle in students from the morning and afternoon shifts. 28th International Conference of Chronobiology (ISC 2014). Bucarest, Rumania.
  105. Ortiz X, Borrani J, Torres K, Valdez P (2014, junio). Analysis of the sleep-wake cycle and attention in elderly people. 28th International Conference of Chronobiology (ISC 2014). Bucarest, Rumania.
  106. Arrona A, García A, Valdez P (2014, junio). The effect of using before bedtime the computer and mobile phone on the sleep/wake cycle. 28th International Conference of Chronobiology (ISC 2014). Bucarest, Rumania.
  107. Ortiz X, Borrani J, Valdez P (2014, julio). Effects of age on the components of attention in elderly people. International Neuropsychology Society (INS) 2014 Mid-Year Meeting. Jerusalem, Israel.
  108. Valdez P (2014, noviembre). Conferencia. Efectos de la privación de sueño sobre los procesos cognoscitivos. XV Congreso Latinoamericano de Medicina del Sueño. México D.F., México.
  109. Belísio A, Cruz ML, Almeida J, Chagas M, Anjos K, Kolodiuk F, Borges G, Silva J, Louzada F, Valdez P, Azevedo C (2014, diciembre). Measuring sleepiness and attention from direct responses of children and their relationship with sleep patterns. III Congress of the International Pediatric Sleep Association. Porto Alegre, Brasil.
  110. Del Ángel J, García A, Ramírez C, Valdez P. (2015, Noviembre). Effects of a 24-h sleep deprivation on attention, working memory and executive functions. XIII Latin American Symposium on Chronobiology. Bragança Paulista, São Paulo, Brasil.
  111. García A, Borrani J, Ramírez C, Ibarra A, Perales V, Rojas G, Ruiz L, Torres G, Uribe K, Zavala P, Valdez P. (2015, Noviembre). Effects of 24-h sleep deprivation on sleep latency and the components of attention. XIII Latin American Symposium on Chronobiology. Bragança Paulista, São Paulo, Brasil.
  112. Ramírez D, García A, Ramírez C, González A, Quintanilla Z, Valdez P. (2015, Noviembre). Circadian variations in a random number generation task. XIII Latin American Symposium on Chronobiology. Bragança Paulista, São Paulo, Brasil. 
  113. Ramírez C, García A, Delgadillo I, Sánchez E, Vallejo M, Cortes C, De Santiago Y, Cantú C, Muñoz M, Ramírez S, Valdez P. (2015, Noviembre). Time of day variations in the components of attention. XIII Latin American Symposium on Chronobiology. Bragança Paulista, São Paulo, Brasil. 
  114. Valdez, P. (2015, Noviembre). Conferencia. Circadian rhythms in cognitive processes. XIII Latin American Symposium on Chronobiology. Bragança Paulista, São Paulo, Brasil.