Banca de QUALIFICAÇÃO: JOSHUA MICHAEL MARTIN

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : JOSHUA MICHAEL MARTIN
DATA : 07/03/2017
HORA: 10:30
LOCAL: Sala de Aula da Psicobiologia
TÍTULO:

Speech Graph Analysis in REM and non-REM Dream Reports

PALAVRAS-CHAVES:

Speech Graph Analysis; dreaming; dream report; non-REM sleep; REM sleep

PÁGINAS: 31
GRANDE ÁREA: Ciências Humanas
ÁREA: Psicologia
RESUMO:

Despite a growing body of literature, it is still unclear to what extent mentation recorded
immediately after Rapid Eye Movement (REM) sleep is different to that recorded after non-REM
(NREM). One way to explore potential disparities has been to investigate the linguistic differences
in dream reports across the respective REM and NREM sleep stages. A particularly promising
method, yet to be applied in this regard, is the analysis of speech graph attributes (SGA). Such a
technique has been able to distinguish verbal reports of schizophrenics, and is particularly revealing
of psychosis when analysing dream reports. The present study aims to use SGA to investigate
possible structural differences in dream reports from the three major sleep stages. In this regard, 22
healthy participants slept in a laboratory and were awoken during N2, N3, and REM. Upon
awakening, participants were asked to report any dream content remembered and then to answer
subjective rating scales relating to their dream content. The final sample for analysis comprised 161
dream reports (N2 – 82, N3 – 33, REM – 46). The initial results indicate that graphs from REM
dream reports are larger and more connected than those from N3. They also suggest that N2 graphs
represent an intermediate form between REM and N3 – smaller and less connected than REM
graphs, but larger and more connected than N3 ones. A correlation analysis demonstrated a
significant relationship between SGA attributes and subjective ratings of dream intensity, dream
recall, auditory perception and emotionality. Altogether, these results indicate a complex
relationship between the graph structures of dream reports and the sleep stage from which they are
obtained. Future analyses incorporating more detailed sleep measures, as well as complementary
semantic based techniques can provide a more complete picture of the present findings.

MEMBROS DA BANCA:
Interno - 2998660 - MARIO ANDRE LEOCADIO MIGUEL
Presidente - 1660044 - SIDARTA TOLLENDAL GOMES RIBEIRO