The present study has two major goals. First, we examined the reliability and validity of a Turki... more The present study has two major goals. First, we examined the reliability and validity of a Turkish version of the Zimbardo Time Perspective Inventory (ZTPI) (Zimbardo and Boyd, 1999). The characteristics of Future Negative dimension (Carelli, Wiberg, & Wiberg, 2011) were also measured and extended by developing items reflecting the Turkish context. Second, individuals’ perceptions of self and of interpersonal relationships in relation to their time perspectives were examined. 177 undergraduates filled out a survey that included the ZTPI, an inventory of parent and peer attachment, the Experiences in Close Relationships Inventory, the Eysenck personality inventory, and Rosenberg’s self-esteem scale. Confirmatory factor analyses were performed to compare the ZTPI’s original five-factor solution to a six-factor solution. The intercorrelations between ZTPI subscales and other constructs indicated that Past Negative (PN) and Present Fatalistic (PF) time orientations were related to disruptions to perceptions of both self and of interpersonal relationships, whereas a reverse pattern was evident for Past Positive and Present Hedonistic orientations. Future was not predictably related to these constructs whereas Future Negative showed a pattern similar to that of PN and PF. Overall, results indicate moderate validity and reliability for the Turkish version and they are further discussed with regard to attachment and time perspective theories.
Keywords: time perspective, personality, interpersonal relationships
Mild Cognitive Impairment (MCI) is characterized by cognitive deficits that exceed age-related de... more Mild Cognitive Impairment (MCI) is characterized by cognitive deficits that exceed age-related decline, but not interfering with daily living activities. Amnestic type of the disorder (aMCI) is known to have a high risk to progress to Alzheimer's Disease (AD), the most common type of dementia. Identification of very early structural changes in the brain related to the cognitive decline in MCI patients would further contribute to the understanding of the dementias. In the current study, we target to investigate whether the white-matter changes are related to structural changes, as well as the cognitive performance of MCI patients. Forty-nine MCI patients were classified as Early MCI (E-MCI, n = 24) and Late MCI (L-MCI, n = 25) due to their performance on The Free and Cued Selective Reminding Test (FCSRT). Age-Related White-Matter Changes (ARWMC) scale was used to evaluate the white-matter changes in the brain. Volumes of specific brain regions were calculated with the FreeSurfer program. Both group and correlation analyses were conducted to show if there was any association between white-matter hyperintensities (WMHs) and structural changes and cognitive performance. Our results indicate that, L-MCI patients had significantly more WMHs not in all but only in the frontal regions compared to E-MCI patients. Besides, ARWMC scores were not correlated with total hippocampal and white-matter volumes. It can be concluded that WMHs play an important role in MCI and cognitive functions are affected by white-matter changes of MCI patients, especially in the frontal regions.
Analysis of affective picture processing by means of EEG has invaded the literature. The methodol... more Analysis of affective picture processing by means of EEG has invaded the literature. The methodology of event-related EEG coherence is one of the essential methods used to analyze functional connectivity. The aims of the present study are to find out the long range EEG connectivity changes in perception of different affective pictures and analyze gender differences in these long range connected networks. EEGs of 28 healthy subjects (14 female) were recorded at 32 locations. The participants passively viewed emotional pictures (IAPS, unpleasant, pleasant, neutral). The long-distance intra-hemispheric event-related coherence was analyzed for delta (1-3.5 Hz), theta (4-7.5 Hz), and alpha (8-13 Hz) frequency ranges for F3-T7, F4-T8, F3-TP7, F4-TP8, F3-P3, F4-P4, F3-O1, F4-O2, C3-O1, C4-O2 electrode pairs. Unpleasant pictures elicited significantly higher delta coherence values than neutral pictures (p < 0.05), over fronto-parietal, fronto-occipital, and centro-occipital electrode pai...
Brain oscillatory responses can be used for non-invasive analyses of cortico-cortical connectivit... more Brain oscillatory responses can be used for non-invasive analyses of cortico-cortical connectivity, local neuronal synchronization, and coherence of oscillations in many neuropsychiatric conditions including Alzheimer's disease (AD). In the present paper, we examine sensory-evoked and event-related gamma coherences elicited by visual stimuli in three sub-gamma bands in two sub-groups of patients with AD (i.e., acetylcholinesterase-inhibitor treated and untreated) and healthy controls. We studied a total of 39 patients with probable mild AD (according to NINCDS-ADRDA criteria) who had been sub-divided into untreated (n = 21) and treated (n = 18) (patients either on cholinergic monotherapy or combined therapy with memantine) AD groups, and 21 age-, gender-, and education-matched healthy elderly controls. A simple flash visual paradigm was applied for the acquisition of sensory-evoked coherences. Event-related coherences were elicited using a classical visual oddball paradigm. Both...
International journal of psychophysiology : official journal of the International Organization of Psychophysiology, Jan 7, 2015
The application of the concept and methods of brain oscillations has been an important research a... more The application of the concept and methods of brain oscillations has been an important research area in neurosciences. In the last decades, besides the application in cognitive processes, the study of changes in brain oscillations in diseases has also become an important focal point of research. In the present paper, some remarkable examples in three different diseases are taken into consideration: 1) schizophrenia (SZ), 2) Alzheimer's disease (AD), 3) bipolar disorders (BD). In the current literature, decreased oscillations in cortical recordings are observed in most of the pathologies. For example, decrease of gamma activity in SZ, decrease of delta activity in almost all diseases, as well as frequency shifts in alpha and the lower frequencies were recorded. However, there are also paradoxical cases in which an increase of oscillatory activities is observed. In BD, whereas alpha activity is greatly decreased, a huge increase of beta activity is observed. Or, in SZ, a paradoxic...
The present study has two major goals. First, we examined the reliability and validity of a Turki... more The present study has two major goals. First, we examined the reliability and validity of a Turkish version of the Zimbardo Time Perspective Inventory (ZTPI) (Zimbardo and Boyd, 1999). The characteristics of Future Negative dimension (Carelli, Wiberg, & Wiberg, 2011) were also measured and extended by developing items reflecting the Turkish context. Second, individuals’ perceptions of self and of interpersonal relationships in relation to their time perspectives were examined. 177 undergraduates filled out a survey that included the ZTPI, an inventory of parent and peer attachment, the Experiences in Close Relationships Inventory, the Eysenck personality inventory, and Rosenberg’s self-esteem scale. Confirmatory factor analyses were performed to compare the ZTPI’s original five-factor solution to a six-factor solution. The intercorrelations between ZTPI subscales and other constructs indicated that Past Negative (PN) and Present Fatalistic (PF) time orientations were related to disruptions to perceptions of both self and of interpersonal relationships, whereas a reverse pattern was evident for Past Positive and Present Hedonistic orientations. Future was not predictably related to these constructs whereas Future Negative showed a pattern similar to that of PN and PF. Overall, results indicate moderate validity and reliability for the Turkish version and they are further discussed with regard to attachment and time perspective theories.
Keywords: time perspective, personality, interpersonal relationships
Mild Cognitive Impairment (MCI) is characterized by cognitive deficits that exceed age-related de... more Mild Cognitive Impairment (MCI) is characterized by cognitive deficits that exceed age-related decline, but not interfering with daily living activities. Amnestic type of the disorder (aMCI) is known to have a high risk to progress to Alzheimer's Disease (AD), the most common type of dementia. Identification of very early structural changes in the brain related to the cognitive decline in MCI patients would further contribute to the understanding of the dementias. In the current study, we target to investigate whether the white-matter changes are related to structural changes, as well as the cognitive performance of MCI patients. Forty-nine MCI patients were classified as Early MCI (E-MCI, n = 24) and Late MCI (L-MCI, n = 25) due to their performance on The Free and Cued Selective Reminding Test (FCSRT). Age-Related White-Matter Changes (ARWMC) scale was used to evaluate the white-matter changes in the brain. Volumes of specific brain regions were calculated with the FreeSurfer program. Both group and correlation analyses were conducted to show if there was any association between white-matter hyperintensities (WMHs) and structural changes and cognitive performance. Our results indicate that, L-MCI patients had significantly more WMHs not in all but only in the frontal regions compared to E-MCI patients. Besides, ARWMC scores were not correlated with total hippocampal and white-matter volumes. It can be concluded that WMHs play an important role in MCI and cognitive functions are affected by white-matter changes of MCI patients, especially in the frontal regions.
Analysis of affective picture processing by means of EEG has invaded the literature. The methodol... more Analysis of affective picture processing by means of EEG has invaded the literature. The methodology of event-related EEG coherence is one of the essential methods used to analyze functional connectivity. The aims of the present study are to find out the long range EEG connectivity changes in perception of different affective pictures and analyze gender differences in these long range connected networks. EEGs of 28 healthy subjects (14 female) were recorded at 32 locations. The participants passively viewed emotional pictures (IAPS, unpleasant, pleasant, neutral). The long-distance intra-hemispheric event-related coherence was analyzed for delta (1-3.5 Hz), theta (4-7.5 Hz), and alpha (8-13 Hz) frequency ranges for F3-T7, F4-T8, F3-TP7, F4-TP8, F3-P3, F4-P4, F3-O1, F4-O2, C3-O1, C4-O2 electrode pairs. Unpleasant pictures elicited significantly higher delta coherence values than neutral pictures (p < 0.05), over fronto-parietal, fronto-occipital, and centro-occipital electrode pai...
Brain oscillatory responses can be used for non-invasive analyses of cortico-cortical connectivit... more Brain oscillatory responses can be used for non-invasive analyses of cortico-cortical connectivity, local neuronal synchronization, and coherence of oscillations in many neuropsychiatric conditions including Alzheimer's disease (AD). In the present paper, we examine sensory-evoked and event-related gamma coherences elicited by visual stimuli in three sub-gamma bands in two sub-groups of patients with AD (i.e., acetylcholinesterase-inhibitor treated and untreated) and healthy controls. We studied a total of 39 patients with probable mild AD (according to NINCDS-ADRDA criteria) who had been sub-divided into untreated (n = 21) and treated (n = 18) (patients either on cholinergic monotherapy or combined therapy with memantine) AD groups, and 21 age-, gender-, and education-matched healthy elderly controls. A simple flash visual paradigm was applied for the acquisition of sensory-evoked coherences. Event-related coherences were elicited using a classical visual oddball paradigm. Both...
International journal of psychophysiology : official journal of the International Organization of Psychophysiology, Jan 7, 2015
The application of the concept and methods of brain oscillations has been an important research a... more The application of the concept and methods of brain oscillations has been an important research area in neurosciences. In the last decades, besides the application in cognitive processes, the study of changes in brain oscillations in diseases has also become an important focal point of research. In the present paper, some remarkable examples in three different diseases are taken into consideration: 1) schizophrenia (SZ), 2) Alzheimer's disease (AD), 3) bipolar disorders (BD). In the current literature, decreased oscillations in cortical recordings are observed in most of the pathologies. For example, decrease of gamma activity in SZ, decrease of delta activity in almost all diseases, as well as frequency shifts in alpha and the lower frequencies were recorded. However, there are also paradoxical cases in which an increase of oscillatory activities is observed. In BD, whereas alpha activity is greatly decreased, a huge increase of beta activity is observed. Or, in SZ, a paradoxic...
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Conference Presentations by Banu Femir
Zimbardo Time Perspective Inventory (ZTPI) (Zimbardo and Boyd, 1999). The characteristics of Future Negative dimension (Carelli, Wiberg, & Wiberg, 2011) were also measured and extended by developing items reflecting the Turkish context. Second, individuals’ perceptions of self and of interpersonal relationships in relation to their time perspectives were examined. 177 undergraduates filled out a survey that included the ZTPI, an inventory of parent and peer attachment, the Experiences in Close Relationships Inventory, the Eysenck personality inventory, and Rosenberg’s self-esteem scale. Confirmatory factor analyses were performed to compare the ZTPI’s original five-factor solution to a six-factor solution. The intercorrelations between ZTPI subscales and other constructs indicated that Past Negative (PN) and Present Fatalistic (PF) time orientations were related to disruptions to perceptions of both self and of interpersonal relationships, whereas a reverse pattern was evident for Past Positive and Present Hedonistic orientations. Future was not predictably related to these constructs whereas Future Negative showed a pattern similar to that of PN and PF. Overall, results indicate moderate validity and reliability for the Turkish version and they are further discussed with regard to attachment and time perspective theories.
Keywords: time perspective, personality, interpersonal relationships
Papers by Banu Femir
Zimbardo Time Perspective Inventory (ZTPI) (Zimbardo and Boyd, 1999). The characteristics of Future Negative dimension (Carelli, Wiberg, & Wiberg, 2011) were also measured and extended by developing items reflecting the Turkish context. Second, individuals’ perceptions of self and of interpersonal relationships in relation to their time perspectives were examined. 177 undergraduates filled out a survey that included the ZTPI, an inventory of parent and peer attachment, the Experiences in Close Relationships Inventory, the Eysenck personality inventory, and Rosenberg’s self-esteem scale. Confirmatory factor analyses were performed to compare the ZTPI’s original five-factor solution to a six-factor solution. The intercorrelations between ZTPI subscales and other constructs indicated that Past Negative (PN) and Present Fatalistic (PF) time orientations were related to disruptions to perceptions of both self and of interpersonal relationships, whereas a reverse pattern was evident for Past Positive and Present Hedonistic orientations. Future was not predictably related to these constructs whereas Future Negative showed a pattern similar to that of PN and PF. Overall, results indicate moderate validity and reliability for the Turkish version and they are further discussed with regard to attachment and time perspective theories.
Keywords: time perspective, personality, interpersonal relationships